# Class JSlider

java.lang.Object
java.awt.Component
java.awt.Container
javax.swing.JComponent
javax.swing.JSlider

All Implemented Interfaces:
  `ImageObserver, MenuContainer, Serializable, Accessible, SwingConstants`

@JavaBean(defaultProperty="UI", description="A component that supports selecting a integer value from a range.") public class JSlider extends JComponent implements SwingConstants, Accessible
A component that lets the user graphically select a value by sliding a knob within a bounded interval. The knob is always positioned at the points that match integer values within the specified interval.

The slider can show both major tick marks, and minor tick marks between the major ones. The number of values between the tick marks is controlled with `setMajorTickSpacing` and `setMinorTickSpacing`. Painting of tick marks is controlled by `setPaintTicks`.

Sliders can also print text labels at regular intervals (or at arbitrary locations) along the slider track. Painting of labels is controlled by `setLabelTable` and `setPaintLabels`.

For further information and examples see How to Use Sliders, a section in The Java Tutorial.

Warning: Swing is not thread safe. For more information see Swing's Threading Policy.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans has been added to the `java.beans` package. Please see `XMLEncoder`.

Since:
  1.2

## Nested Class Summary

Nested Classes
Modifier and Type
Class
Description
`protected class`
`JSlider.AccessibleJSlider`
This class implements accessibility support for the `JSlider` class.

### Nested classes/interfaces declared in class JComponent

`JComponent.AccessibleJComponent`
Modifier and Type
Class
Description
`class`
`JComponent.AccessibleJComponent`
Inner class of JComponent used to provide default support for accessibility.

### Nested classes/interfaces declared in class Container

`Container.AccessibleAWTContainer`
Modifier and Type
Class
Description
`protected class`
`Container.AccessibleAWTContainer`
Inner class of Container used to provide default support for accessibility.

### Nested classes/interfaces declared in class Component

`Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy`
Modifier and Type
Class
Description
`protected class`
`Component.AccessibleAWTComponent`
Inner class of Component used to provide default support for accessibility.
`static enum`
`Component.BaselineResizeBehavior`
Enumeration of the common ways the baseline of a component can change as the size changes.
`protected class`
`Component.BltBufferStrategy`
Inner class for blitting offscreen surfaces to a component.
`protected class`
`Component.FlipBufferStrategy`
Inner class for flipping buffers on a component.

## Field Summary

Fields
Modifier and Type
Field
Description
`protected ChangeEvent`
`changeEvent`
Only one `ChangeEvent` is needed per slider instance since the event's only (read-only) state is the source property.
`protected ChangeListener`
`changeListener`
The changeListener (no suffix) is the listener we add to the slider's model.
`protected int`
`majorTickSpacing`
The number of values between the major tick marks -- the larger marks that break up the minor tick marks.
`protected int`
`minorTickSpacing`
The number of values between the minor tick marks -- the smaller marks that occur between the major tick marks.
`protected int`
`orientation`
Whether the slider is horizontal or vertical The default is horizontal.
`protected BoundedRangeModel`
`sliderModel`
The data model that handles the numeric maximum value, minimum value, and current-position value for the slider.
`protected boolean`
`snapToTicks`
If true, the knob (and the data value it represents) resolve to the closest tick mark next to where the user positioned the knob.

### Fields declared in class JComponent

`listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW`
Modifier and Type
Field
Description
`protected EventListenerList`
`listenerList`
A list of event listeners for this component.
`static final String`
`TOOL_TIP_TEXT_KEY`
The comment to display when the cursor is over the component, also known as a "value tip", "flyover help", or "flyover label".
`protected ComponentUI`
`ui`
The look and feel delegate for this component.
`static final int`
`UNDEFINED_CONDITION`
Constant used by some of the APIs to mean that no condition is defined.
`static final int`
`WHEN_ANCESTOR_OF_FOCUSED_COMPONENT`
Constant used for `registerKeyboardAction` that means that the command should be invoked when the receiving component is an ancestor of the focused component or is itself the focused component.
`static final int`
`WHEN_FOCUSED`
Constant used for `registerKeyboardAction` that means that the command should be invoked when the component has the focus.
`static final int`
`WHEN_IN_FOCUSED_WINDOW`
Constant used for `registerKeyboardAction` that means that the command should be invoked when the receiving component is in the window that has the focus or is itself the focused component.

### Fields declared in class Component

`accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT`
Modifier and Type
Field
Description
`protected AccessibleContext`
`accessibleContext`
The `AccessibleContext` associated with this `Component`.
`static final float`
`BOTTOM_ALIGNMENT`
Ease-of-use constant for `getAlignmentY`.
`static final float`
`CENTER_ALIGNMENT`
Ease-of-use constant for `getAlignmentY` and `getAlignmentX`.
`static final float`
`LEFT_ALIGNMENT`
Ease-of-use constant for `getAlignmentX`.
`static final float`
`RIGHT_ALIGNMENT`
Ease-of-use constant for `getAlignmentX`.
`static final float`
`TOP_ALIGNMENT`
Ease-of-use constant for `getAlignmentY()`.

### Fields declared in interface ImageObserver

`ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH`
Modifier and Type
Field
Description
`static final int`
`ABORT`
This flag in the infoflags argument to imageUpdate indicates that an image which was being tracked asynchronously was aborted before production was complete.
`static final int`
`ALLBITS`
This flag in the infoflags argument to imageUpdate indicates that a static image which was previously drawn is now complete and can be drawn again in its final form.
`static final int`
`ERROR`
This flag in the infoflags argument to imageUpdate indicates that an image which was being tracked asynchronously has encountered an error.
`static final int`
`FRAMEBITS`
This flag in the infoflags argument to imageUpdate indicates that another complete frame of a multi-frame image which was previously drawn is now available to be drawn again.
`static final int`
`HEIGHT`
This flag in the infoflags argument to imageUpdate indicates that the height of the base image is now available and can be taken from the height argument to the imageUpdate callback method.
`static final int`
`PROPERTIES`
This flag in the infoflags argument to imageUpdate indicates that the properties of the image are now available.
`static final int`
`SOMEBITS`
This flag in the infoflags argument to imageUpdate indicates that more pixels needed for drawing a scaled variation of the image are available.
`static final int`
`WIDTH`
This flag in the infoflags argument to imageUpdate indicates that the width of the base image is now available and can be taken from the width argument to the imageUpdate callback method.

### Fields declared in interface SwingConstants

`BOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NEXT, NORTH, NORTH_EAST, NORTH_WEST, PREVIOUS, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST`
Modifier and Type
Field
Description
`static final int`
`BOTTOM`
Box-orientation constant used to specify the bottom of a box.
`static final int`
`CENTER`
The central position in an area.
`static final int`
`EAST`
Compass-direction east (right).
`static final int`
`HORIZONTAL`
Horizontal orientation.
`static final int`
`LEADING`
Identifies the leading edge of text for use with left-to-right and right-to-left languages.
`static final int`
`LEFT`
Box-orientation constant used to specify the left side of a box.
`static final int`
`NEXT`
Identifies the next direction in a sequence.
`static final int`
`NORTH`
Compass-direction North (up).
`static final int`
`NORTH_EAST`
Compass-direction north-east (upper right).
`static final int`
`NORTH_WEST`
Compass-direction north west (upper left).
`static final int`
`PREVIOUS`
Identifies the previous direction in a sequence.
`static final int`
`RIGHT`
Box-orientation constant used to specify the right side of a box.
`static final int`
`SOUTH`
Compass-direction south (down).
`static final int`
`SOUTH_EAST`
Compass-direction south-east (lower right).
`static final int`
`SOUTH_WEST`
Compass-direction south-west (lower left).
`static final int`
`TOP`
Box-orientation constant used to specify the top of a box.
`static final int`
`TRAILING`
Identifies the trailing edge of text for use with left-to-right and right-to-left languages.
`static final int`
`VERTICAL`
Vertical orientation.
`static final int`
`WEST`
Compass-direction west (left).

## Constructor Summary

Constructors
Constructor
Description
`JSlider()`
Creates a horizontal slider with the range 0 to 100 and an initial value of 50.
`JSlider(int orientation)`
Creates a slider using the specified orientation with the range `0` to `100` and an initial value of `50`.
`JSlider(int min, int max)`
Creates a horizontal slider using the specified min and max with an initial value equal to the average of the min plus max.
`JSlider(int min, int max, int value)`
Creates a horizontal slider using the specified min, max and value.
`JSlider(int orientation, int min, int max, int value)`
Creates a slider with the specified orientation and the specified minimum, maximum, and initial values.
`JSlider(BoundedRangeModel brm)`
Creates a horizontal slider using the specified BoundedRangeModel.

## Method Summary

Modifier and Type
Method
Description
`void`
`addChangeListener(ChangeListener l)`
Adds a ChangeListener to the slider.
`protected ChangeListener`
`createChangeListener()`
Subclasses that want to handle `ChangeEvent`s from the model differently can override this to return an instance of a custom `ChangeListener` implementation.
`Hashtable<Integer, JComponent>`
`createStandardLabels(int increment)`
Creates a `Hashtable` of numerical text labels, starting at the slider minimum, and using the increment specified.
`Hashtable<Integer, JComponent>`
`createStandardLabels(int increment, int start)`
Creates a `Hashtable` of numerical text labels, starting at the starting point specified, and using the increment specified.
`protected void`
`fireStateChanged()`
Send a `ChangeEvent`, whose source is this `JSlider`, to all `ChangeListener`s that have registered interest in `ChangeEvent`s.
`AccessibleContext`
`getAccessibleContext()`
Gets the AccessibleContext associated with this JSlider.
`ChangeListener[]`
`getChangeListeners()`
Returns an array of all the `ChangeListener`s added to this JSlider with addChangeListener().
`int`
`getExtent()`
Returns the "extent" from the `BoundedRangeModel`.
`boolean`
`getInverted()`
Returns true if the value-range shown for the slider is reversed,
`Dictionary`
`getLabelTable()`
Returns the dictionary of what labels to draw at which values.
`int`
`getMajorTickSpacing()`
This method returns the major tick spacing.
`int`
`getMaximum()`
Returns the maximum value supported by the slider from the `BoundedRangeModel`.
`int`
`getMinimum()`
Returns the minimum value supported by the slider from the `BoundedRangeModel`.
`int`
`getMinorTickSpacing()`
This method returns the minor tick spacing.
`BoundedRangeModel`
`getModel()`
Returns the `BoundedRangeModel` that handles the slider's three fundamental properties: minimum, maximum, value.
`int`
`getOrientation()`
Return this slider's vertical or horizontal orientation.
`boolean`
`getPaintLabels()`
Tells if labels are to be painted.
`boolean`
`getPaintTicks()`
Tells if tick marks are to be painted.
`boolean`
`getPaintTrack()`
Tells if the track (area the slider slides in) is to be painted.
`boolean`
`getSnapToTicks()`
Returns true if the knob (and the data value it represents) resolve to the closest tick mark next to where the user positioned the knob.
`SliderUI`
`getUI()`
Gets the UI object which implements the L&F for this component.
`String`
`getUIClassID()`
Returns the name of the L&F class that renders this component.
`int`
`getValue()`
Returns the slider's current value from the `BoundedRangeModel`.
`boolean`
`getValueIsAdjusting()`
Returns the `valueIsAdjusting` property from the model.
`boolean`
`imageUpdate(Image img, int infoflags, int x, int y, int w, int h)`
Repaints the component when the image has changed.
`protected String`
`paramString()`
Returns a string representation of this JSlider.
`void`
`removeChangeListener(ChangeListener l)`
Removes a ChangeListener from the slider.
`void`
`setExtent(int extent)`
Sets the size of the range "covered" by the knob.
`void`
`setFont(Font font)`
Sets the font for this component.
`void`
`setInverted(boolean b)`
Specify true to reverse the value-range shown for the slider and false to put the value range in the normal order.
`void`
`setLabelTable(Dictionary labels)`
Used to specify what label will be drawn at any given value.
`void`
`setMajorTickSpacing(int n)`
This method sets the major tick spacing.
`void`
`setMaximum(int maximum)`
Sets the slider's maximum value to `maximum`.
`void`
`setMinimum(int minimum)`
Sets the slider's minimum value to `minimum`.
`void`
`setMinorTickSpacing(int n)`
This method sets the minor tick spacing.
`void`
`setModel(BoundedRangeModel newModel)`
Sets the `BoundedRangeModel` that handles the slider's three fundamental properties: minimum, maximum, value.
`void`
`setOrientation(int orientation)`
Set the slider's orientation to either `SwingConstants.VERTICAL` or `SwingConstants.HORIZONTAL`.
`void`
`setPaintLabels(boolean b)`
Determines whether labels are painted on the slider.
`void`
`setPaintTicks(boolean b)`
Determines whether tick marks are painted on the slider.
`void`
`setPaintTrack(boolean b)`
Determines whether the track is painted on the slider.
`void`
`setSnapToTicks(boolean b)`
Specifying true makes the knob (and the data value it represents) resolve to the closest tick mark next to where the user positioned the knob.
`void`
`setUI(SliderUI ui)`
Sets the UI object which implements the L&F for this component.
`void`
`setValue(int n)`
Sets the slider's current value to `n`.
`void`
`setValueIsAdjusting(boolean b)`
Sets the model's `valueIsAdjusting` property.
`protected void`
`updateLabelUIs()`
Updates the UIs for the labels in the label table by calling `updateUI` on each label.
`void`
`updateUI()`
Resets the UI property to a value from the current look and feel.

### Methods declared in class JComponent

`addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update`
Modifier and Type
Method
Description
`void`
`addAncestorListener(AncestorListener listener)`
Registers `listener` so that it will receive `AncestorEvents` when it or any of its ancestors move or are made visible or invisible.
`void`
`addNotify()`
Notifies this component that it now has a parent component.
`void`
`addVetoableChangeListener(VetoableChangeListener listener)`
Adds a `VetoableChangeListener` to the listener list.
`void`
`computeVisibleRect(Rectangle visibleRect)`
Returns the `Component`'s "visible rect rectangle" - the intersection of the visible rectangles for this component and all of its ancestors.
`boolean`
`contains(int x, int y)`
Gives the UI delegate an opportunity to define the precise shape of this component for the sake of mouse processing.
`JToolTip`
`createToolTip()`
Returns the instance of `JToolTip` that should be used to display the tooltip.
`void`
`disable()`
Deprecated.
As of JDK version 1.1, replaced by `java.awt.Component.setEnabled(boolean)`.
`void`
`enable()`
Deprecated.
As of JDK version 1.1, replaced by `java.awt.Component.setEnabled(boolean)`.
`void`
`firePropertyChange(String propertyName, boolean oldValue, boolean newValue)`
Support for reporting bound property changes for boolean properties.
`void`
`firePropertyChange(String propertyName, int oldValue, int newValue)`
Support for reporting bound property changes for integer properties.
`protected void`
`fireVetoableChange(String propertyName, Object oldValue, Object newValue)`
Supports reporting constrained property changes.
`ActionListener`
`getActionForKeyStroke(KeyStroke aKeyStroke)`
Returns the object that will perform the action registered for a given keystroke.
`final ActionMap`
`getActionMap()`
Returns the `ActionMap` used to determine what `Action` to fire for particular `KeyStroke` binding.
`float`
`getAlignmentX()`
Overrides `Container.getAlignmentX` to return the horizontal alignment.
`float`
`getAlignmentY()`
Overrides `Container.getAlignmentY` to return the vertical alignment.
`AncestorListener[]`
`getAncestorListeners()`
Returns an array of all the ancestor listeners registered on this component.
`boolean`
`getAutoscrolls()`
Gets the `autoscrolls` property.
`int`
`getBaseline(int width, int height)`
Returns the baseline.
`Component.BaselineResizeBehavior`
`getBaselineResizeBehavior()`
Returns an enum indicating how the baseline of the component changes as the size changes.
`Border`
`getBorder()`
Returns the border of this component or `null` if no border is currently set.
`Rectangle`
`getBounds(Rectangle rv)`
Stores the bounds of this component into "return value" `rv` and returns `rv`.
`final Object`
`getClientProperty(Object key)`
Returns the value of the property with the specified key.
`protected Graphics`
`getComponentGraphics(Graphics g)`
Returns the graphics object used to paint this component.
`JPopupMenu`
`getComponentPopupMenu()`
Returns `JPopupMenu` that assigned for this component.
`int`
`getConditionForKeyStroke(KeyStroke aKeyStroke)`
Returns the condition that determines whether a registered action occurs in response to the specified keystroke.
`int`
`getDebugGraphicsOptions()`
Returns the state of graphics debugging.
`static Locale`
`getDefaultLocale()`
Returns the default locale used to initialize each JComponent's locale property upon creation.
`FontMetrics`
`getFontMetrics(Font font)`
Gets the `FontMetrics` for the specified `Font`.
`Graphics`
`getGraphics()`
Returns this component's graphics context, which lets you draw on a component.
`int`
`getHeight()`
Returns the current height of this component.
`boolean`
`getInheritsPopupMenu()`
Returns true if the JPopupMenu should be inherited from the parent.
`final InputMap`
`getInputMap()`
Returns the `InputMap` that is used when the component has focus.
`final InputMap`
`getInputMap(int condition)`
Returns the `InputMap` that is used during `condition`.
`InputVerifier`
`getInputVerifier()`
Returns the input verifier for this component.
`Insets`
`getInsets()`
If a border has been set on this component, returns the border's insets; otherwise calls `super.getInsets`.
`Insets`
`getInsets(Insets insets)`
Returns an `Insets` object containing this component's inset values.
`<T extends EventListener>
T[]`
`getListeners(Class<T> listenerType)`
Returns an array of all the objects currently registered as `FooListener`s upon this `JComponent`.
`Point`
`getLocation(Point rv)`
Stores the x,y origin of this component into "return value" `rv` and returns `rv`.
`Dimension`
`getMaximumSize()`
If the maximum size has been set to a non-`null` value just returns it.
`Dimension`
`getMinimumSize()`
If the minimum size has been set to a non-`null` value just returns it.
`Component`
`getNextFocusableComponent()`
Deprecated.
As of 1.4, replaced by `FocusTraversalPolicy`.
`Point`
`getPopupLocation(MouseEvent event)`
Returns the preferred location to display the popup menu in this component's coordinate system.
`Dimension`
`getPreferredSize()`
If the `preferredSize` has been set to a non-`null` value just returns it.
`KeyStroke[]`
`getRegisteredKeyStrokes()`
Returns the `KeyStrokes` that will initiate registered actions.
`JRootPane`
`getRootPane()`
Returns the `JRootPane` ancestor for this component.
`Dimension`
`getSize(Dimension rv)`
Stores the width/height of this component into "return value" `rv` and returns `rv`.
`Point`
`getToolTipLocation(MouseEvent event)`
Returns the tooltip location in this component's coordinate system.
`String`
`getToolTipText()`
Returns the tooltip string that has been set with `setToolTipText`.
`String`
`getToolTipText(MouseEvent event)`
Returns the string to be used as the tooltip for event.
`Container`
`getTopLevelAncestor()`
Returns the top-level ancestor of this component (the containing `Window`) or `null` if this component has not been added to any container.
`TransferHandler`
`getTransferHandler()`
Gets the `transferHandler` property.
`boolean`
`getVerifyInputWhenFocusTarget()`
Returns the value that indicates whether the input verifier for the current focus owner will be called before this component requests focus.
`VetoableChangeListener[]`
`getVetoableChangeListeners()`
Returns an array of all the vetoable change listeners registered on this component.
`Rectangle`
`getVisibleRect()`
Returns the `Component`'s "visible rectangle" - the intersection of this component's visible rectangle, `new Rectangle(0, 0, getWidth(), getHeight())`, and all of its ancestors' visible rectangles.
`int`
`getWidth()`
Returns the current width of this component.
`int`
`getX()`
Returns the current x coordinate of the component's origin.
`int`
`getY()`
Returns the current y coordinate of the component's origin.
`void`
`grabFocus()`
Requests that this Component get the input focus, and that this Component's top-level ancestor become the focused Window.
`void`
`hide()`
Deprecated.
`boolean`
`isDoubleBuffered()`
Returns whether this component should use a buffer to paint.
`static boolean`
`isLightweightComponent(Component c)`
Returns true if this component is lightweight, that is, if it doesn't have a native window system peer.
`boolean`
`isManagingFocus()`
Deprecated.
As of 1.4, replaced by `Component.setFocusTraversalKeys(int, Set)` and `Container.setFocusCycleRoot(boolean)`.
`boolean`
`isOpaque()`
Returns true if this component is completely opaque.
`boolean`
`isOptimizedDrawingEnabled()`
Returns true if this component tiles its children -- that is, if it can guarantee that the children will not overlap.
`final boolean`
`isPaintingForPrint()`
Returns `true` if the current painting operation on this component is part of a `print` operation.
`protected boolean`
`isPaintingOrigin()`
Returns `true` if a paint triggered on a child component should cause painting to originate from this Component, or one of its ancestors.
`boolean`
`isPaintingTile()`
Returns true if the component is currently painting a tile.
`boolean`
`isRequestFocusEnabled()`
Returns `true` if this `JComponent` should get focus; otherwise returns `false`.
`boolean`
`isValidateRoot()`
If this method returns true, `revalidate` calls by descendants of this component will cause the entire tree beginning with this root to be validated.
`void`
`paint(Graphics g)`
Invoked by Swing to draw components.
`protected void`
`paintBorder(Graphics g)`
Paints the component's border.
`protected void`
`paintChildren(Graphics g)`
Paints this component's children.
`protected void`
`paintComponent(Graphics g)`
Calls the UI delegate's paint method, if the UI delegate is non-`null`.
`void`
`paintImmediately(int x, int y, int w, int h)`
Paints the specified region in this component and all of its descendants that overlap the region, immediately.
`void`
`paintImmediately(Rectangle r)`
Paints the specified region now.
`void`
`print(Graphics g)`
Invoke this method to print the component to the specified `Graphics`.
`void`
`printAll(Graphics g)`
Invoke this method to print the component.
`protected void`
`printBorder(Graphics g)`
Prints the component's border.
`protected void`
`printChildren(Graphics g)`
Prints this component's children.
`protected void`
`printComponent(Graphics g)`
This is invoked during a printing operation.
`protected void`
`processComponentKeyEvent(KeyEvent e)`
Processes any key events that the component itself recognizes.
`protected boolean`
`processKeyBinding(KeyStroke ks, KeyEvent e, int condition, boolean pressed)`
Invoked to process the key bindings for `ks` as the result of the `KeyEvent` `e`.
`protected void`
`processKeyEvent(KeyEvent e)`
Overrides `processKeyEvent` to process events.
`protected void`
`processMouseEvent(MouseEvent e)`
Processes mouse events occurring on this component by dispatching them to any registered `MouseListener` objects, refer to `Component.processMouseEvent(MouseEvent)` for a complete description of this method.
`protected void`
`processMouseMotionEvent(MouseEvent e)`
Processes mouse motion events, such as MouseEvent.MOUSE_DRAGGED.
`final void`
`putClientProperty(Object key, Object value)`
Adds an arbitrary key/value "client property" to this component.
`void`
`registerKeyboardAction(ActionListener anAction, String aCommand, KeyStroke aKeyStroke, int aCondition)`
This method is now obsolete, please use a combination of `getActionMap()` and `getInputMap()` for similar behavior.
`void`
`registerKeyboardAction(ActionListener anAction, KeyStroke aKeyStroke, int aCondition)`
This method is now obsolete, please use a combination of `getActionMap()` and `getInputMap()` for similar behavior.
`void`
`removeAncestorListener(AncestorListener listener)`
Unregisters `listener` so that it will no longer receive `AncestorEvents`.
`void`
`removeNotify()`
Notifies this component that it no longer has a parent component.
`void`
`removeVetoableChangeListener(VetoableChangeListener listener)`
Removes a `VetoableChangeListener` from the listener list.
`void`
`repaint(long tm, int x, int y, int width, int height)`
Adds the specified region to the dirty region list if the component is showing.
`void`
`repaint(Rectangle r)`
Adds the specified region to the dirty region list if the component is showing.
`boolean`
`requestDefaultFocus()`
Deprecated.
As of 1.4, replaced by `FocusTraversalPolicy.getDefaultComponent(Container).requestFocus()`
`void`
`requestFocus()`
Requests that this `Component` gets the input focus.
`boolean`
`requestFocus(boolean temporary)`
Requests that this `Component` gets the input focus.
`boolean`
`requestFocusInWindow()`
Requests that this `Component` gets the input focus.
`protected boolean`
`requestFocusInWindow(boolean temporary)`
Requests that this `Component` gets the input focus.
`void`
`resetKeyboardActions()`
Unregisters all the bindings in the first tier `InputMaps` and `ActionMap`.
`void`
`reshape(int x, int y, int w, int h)`
Deprecated.
As of JDK 5, replaced by `Component.setBounds(int, int, int, int)`.
`void`
`revalidate()`
Supports deferred automatic layout.
`void`
`scrollRectToVisible(Rectangle aRect)`
Forwards the `scrollRectToVisible()` message to the `JComponent`'s parent.
`final void`
`setActionMap(ActionMap am)`
Sets the `ActionMap` to `am`.
`void`
`setAlignmentX(float alignmentX)`
Sets the horizontal alignment.
`void`
`setAlignmentY(float alignmentY)`
Sets the vertical alignment.
`void`
`setAutoscrolls(boolean autoscrolls)`
Sets the `autoscrolls` property.
`void`
`setBackground(Color bg)`
Sets the background color of this component.
`void`
`setBorder(Border border)`
Sets the border of this component.
`void`
`setComponentPopupMenu(JPopupMenu popup)`
Sets the `JPopupMenu` for this `JComponent`.
`void`
`setDebugGraphicsOptions(int debugOptions)`
Enables or disables diagnostic information about every graphics operation performed within the component or one of its children.
`static void`
`setDefaultLocale(Locale l)`
Sets the default locale used to initialize each JComponent's locale property upon creation.
`void`
`setDoubleBuffered(boolean aFlag)`
Sets whether this component should use a buffer to paint.
`void`
`setEnabled(boolean enabled)`
Sets whether or not this component is enabled.
`void`
`setFocusTraversalKeys(int id, Set<? extends AWTKeyStroke> keystrokes)`
Sets the focus traversal keys for a given traversal operation for this Component.
`void`
`setForeground(Color fg)`
Sets the foreground color of this component.
`void`
`setInheritsPopupMenu(boolean value)`
Sets whether or not `getComponentPopupMenu` should delegate to the parent if this component does not have a `JPopupMenu` assigned to it.
`final void`
`setInputMap(int condition, InputMap map)`
Sets the `InputMap` to use under the condition `condition` to `map`.
`void`
`setInputVerifier(InputVerifier inputVerifier)`
Sets the input verifier for this component.
`void`
`setMaximumSize(Dimension maximumSize)`
Sets the maximum size of this component to a constant value.
`void`
`setMinimumSize(Dimension minimumSize)`
Sets the minimum size of this component to a constant value.
`void`
`setNextFocusableComponent(Component aComponent)`
Deprecated.
As of 1.4, replaced by `FocusTraversalPolicy`
`void`
`setOpaque(boolean isOpaque)`
If true the component paints every pixel within its bounds.
`void`
`setPreferredSize(Dimension preferredSize)`
Sets the preferred size of this component.
`void`
`setRequestFocusEnabled(boolean requestFocusEnabled)`
Provides a hint as to whether or not this `JComponent` should get focus.
`void`
`setToolTipText(String text)`
Registers the text to display in a tool tip.
`void`
`setTransferHandler(TransferHandler newHandler)`
Sets the `TransferHandler`, which provides support for transfer of data into and out of this component via cut/copy/paste and drag and drop.
`protected void`
`setUI(ComponentUI newUI)`
Sets the look and feel delegate for this component.
`void`
`setVerifyInputWhenFocusTarget(boolean verifyInputWhenFocusTarget)`
Sets the value to indicate whether input verifier for the current focus owner will be called before this component requests focus.
`void`
`setVisible(boolean aFlag)`
Makes the component visible or invisible.
`void`
`unregisterKeyboardAction(KeyStroke aKeyStroke)`
This method is now obsolete.
`void`
`update(Graphics g)`
Calls `paint`.

### Methods declared in class Container

`add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusDownCycle, validate, validateTree`
Modifier and Type
Method
Description
`Component`
`add(Component comp)`
Appends the specified component to the end of this container.
`Component`
`add(Component comp, int index)`
Adds the specified component to this container at the given position.
`void`
`add(Component comp, Object constraints)`
Adds the specified component to the end of this container.
`void`
`add(Component comp, Object constraints, int index)`
Adds the specified component to this container with the specified constraints at the specified index.
`Component`
`add(String name, Component comp)`
Adds the specified component to this container.
`void`
`addContainerListener(ContainerListener l)`
Adds the specified container listener to receive container events from this container.
`protected void`
`addImpl(Component comp, Object constraints, int index)`
Adds the specified component to this container at the specified index.
`void`
`addPropertyChangeListener(PropertyChangeListener listener)`
Adds a PropertyChangeListener to the listener list.
`void`
`addPropertyChangeListener(String propertyName, PropertyChangeListener listener)`
Adds a PropertyChangeListener to the listener list for a specific property.
`void`
`applyComponentOrientation(ComponentOrientation o)`
Sets the `ComponentOrientation` property of this container and all components contained within it.
`boolean`
`areFocusTraversalKeysSet(int id)`
Returns whether the Set of focus traversal keys for the given focus traversal operation has been explicitly defined for this Container.
`int`
`countComponents()`
Deprecated.
As of JDK version 1.1, replaced by getComponentCount().
`void`
`deliverEvent(Event e)`
Deprecated.
As of JDK version 1.1, replaced by `dispatchEvent(AWTEvent e)`
`void`
`doLayout()`
Causes this container to lay out its components.
`Component`
`findComponentAt(int x, int y)`
Locates the visible child component that contains the specified position.
`Component`
`findComponentAt(Point p)`
Locates the visible child component that contains the specified point.
`Component`
`getComponent(int n)`
Gets the nth component in this container.
`Component`
`getComponentAt(int x, int y)`
Locates the component that contains the x,y position.
`Component`
`getComponentAt(Point p)`
Gets the component that contains the specified point.
`int`
`getComponentCount()`
Gets the number of components in this panel.
`Component[]`
`getComponents()`
Gets all the components in this container.
`int`
`getComponentZOrder(Component comp)`
Returns the z-order index of the component inside the container.
`ContainerListener[]`
`getContainerListeners()`
Returns an array of all the container listeners registered on this container.
`Set<AWTKeyStroke>`
`getFocusTraversalKeys(int id)`
Returns the Set of focus traversal keys for a given traversal operation for this Container.
`FocusTraversalPolicy`
`getFocusTraversalPolicy()`
Returns the focus traversal policy that will manage keyboard traversal of this Container's children, or null if this Container is not a focus cycle root.
`LayoutManager`
`getLayout()`
Gets the layout manager for this container.
`Point`
`getMousePosition(boolean allowChildren)`
Returns the position of the mouse pointer in this `Container`'s coordinate space if the `Container` is under the mouse pointer, otherwise returns `null`.
`Insets`
`insets()`
Deprecated.
As of JDK version 1.1, replaced by `getInsets()`.
`void`
`invalidate()`
Invalidates the container.
`boolean`
`isAncestorOf(Component c)`
Checks if the component is contained in the component hierarchy of this container.
`boolean`
`isFocusCycleRoot()`
Returns whether this Container is the root of a focus traversal cycle.
`boolean`
`isFocusCycleRoot(Container container)`
Returns whether the specified Container is the focus cycle root of this Container's focus traversal cycle.
`final boolean`
`isFocusTraversalPolicyProvider()`
Returns whether this container provides focus traversal policy.
`boolean`
`isFocusTraversalPolicySet()`
Returns whether the focus traversal policy has been explicitly set for this Container.
`void`
`layout()`
Deprecated.
As of JDK version 1.1, replaced by `doLayout()`.
`void`
`list(PrintStream out, int indent)`
Prints a listing of this container to the specified output stream.
`void`
`list(PrintWriter out, int indent)`
Prints out a list, starting at the specified indentation, to the specified print writer.
`Component`
`locate(int x, int y)`
Deprecated.
As of JDK version 1.1, replaced by `getComponentAt(int, int)`.
`Dimension`
`minimumSize()`
Deprecated.
As of JDK version 1.1, replaced by `getMinimumSize()`.
`void`
`paintComponents(Graphics g)`
Paints each of the components in this container.
`Dimension`
`preferredSize()`
Deprecated.
As of JDK version 1.1, replaced by `getPreferredSize()`.
`void`
`printComponents(Graphics g)`
Prints each of the components in this container.
`protected void`
`processContainerEvent(ContainerEvent e)`
Processes container events occurring on this container by dispatching them to any registered ContainerListener objects.
`protected void`
`processEvent(AWTEvent e)`
Processes events on this container.
`void`
`remove(int index)`
Removes the component, specified by `index`, from this container.
`void`
`remove(Component comp)`
Removes the specified component from this container.
`void`
`removeAll()`
Removes all the components from this container.
`void`
`removeContainerListener(ContainerListener l)`
Removes the specified container listener so it no longer receives container events from this container.
`void`
`setComponentZOrder(Component comp, int index)`
Moves the specified component to the specified z-order index in the container.
`void`
`setFocusCycleRoot(boolean focusCycleRoot)`
Sets whether this Container is the root of a focus traversal cycle.
`void`
`setFocusTraversalPolicy(FocusTraversalPolicy policy)`
Sets the focus traversal policy that will manage keyboard traversal of this Container's children, if this Container is a focus cycle root.
`final void`
`setFocusTraversalPolicyProvider(boolean provider)`
Sets whether this container will be used to provide focus traversal policy.
`void`
`setLayout(LayoutManager mgr)`
Sets the layout manager for this container.
`void`
`transferFocusDownCycle()`
Transfers the focus down one focus traversal cycle.
`void`
`validate()`
Validates this container and all of its subcomponents.
`protected void`
`validateTree()`
Recursively descends the container tree and recomputes the layout for any subtrees marked as needing it (those marked as invalid).

### Methods declared in class Component

`action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setMixingCutoutShape, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle`
Modifier and Type
Method
Description
`boolean`
`action(Event evt, Object what)`
Deprecated.
As of JDK version 1.1, should register this component as ActionListener on component which fires action events.
`void`
`add(PopupMenu popup)`
Adds the specified popup menu to the component.
`void`
`addComponentListener(ComponentListener l)`
Adds the specified component listener to receive component events from this component.
`void`
`addFocusListener(FocusListener l)`
Adds the specified focus listener to receive focus events from this component when this component gains input focus.
`void`
`addHierarchyBoundsListener(HierarchyBoundsListener l)`
Adds the specified hierarchy bounds listener to receive hierarchy bounds events from this component when the hierarchy to which this container belongs changes.
`void`
`addHierarchyListener(HierarchyListener l)`
Adds the specified hierarchy listener to receive hierarchy changed events from this component when the hierarchy to which this container belongs changes.
`void`
`addInputMethodListener(InputMethodListener l)`
Adds the specified input method listener to receive input method events from this component.
`void`
`addKeyListener(KeyListener l)`
Adds the specified key listener to receive key events from this component.
`void`
`addMouseListener(MouseListener l)`
Adds the specified mouse listener to receive mouse events from this component.
`void`
`addMouseMotionListener(MouseMotionListener l)`
Adds the specified mouse motion listener to receive mouse motion events from this component.
`void`
`addMouseWheelListener(MouseWheelListener l)`
Adds the specified mouse wheel listener to receive mouse wheel events from this component.
`Rectangle`
`bounds()`
Deprecated.
As of JDK version 1.1, replaced by `getBounds()`.
`int`
`checkImage(Image image, int width, int height, ImageObserver observer)`
Returns the status of the construction of a screen representation of the specified image.
`int`
`checkImage(Image image, ImageObserver observer)`
Returns the status of the construction of a screen representation of the specified image.
`protected AWTEvent`
`coalesceEvents(AWTEvent existingEvent, AWTEvent newEvent)`
Potentially coalesce an event being posted with an existing event.
`boolean`
`contains(Point p)`
Checks whether this component "contains" the specified point, where the point's x and y coordinates are defined to be relative to the coordinate system of this component.
`Image`
`createImage(int width, int height)`
Creates an off-screen drawable image to be used for double buffering.
`Image`
`createImage(ImageProducer producer)`
Creates an image from the specified image producer.
`VolatileImage`
`createVolatileImage(int width, int height)`
Creates a volatile off-screen drawable image to be used for double buffering.
`VolatileImage`
`createVolatileImage(int width, int height, ImageCapabilities caps)`
Creates a volatile off-screen drawable image, with the given capabilities.
`protected final void`
`disableEvents(long eventsToDisable)`
Disables the events defined by the specified event mask parameter from being delivered to this component.
`final void`
`dispatchEvent(AWTEvent e)`
Dispatches an event to this component or one of its sub components.
`void`
`enable(boolean b)`
Deprecated.
As of JDK version 1.1, replaced by `setEnabled(boolean)`.
`protected final void`
`enableEvents(long eventsToEnable)`
Enables the events defined by the specified event mask parameter to be delivered to this component.
`void`
`enableInputMethods(boolean enable)`
Enables or disables input method support for this component.
`void`
`firePropertyChange(String propertyName, byte oldValue, byte newValue)`
Reports a bound property change.
`void`
`firePropertyChange(String propertyName, char oldValue, char newValue)`
Reports a bound property change.
`void`
`firePropertyChange(String propertyName, double oldValue, double newValue)`
Reports a bound property change.
`void`
`firePropertyChange(String propertyName, float oldValue, float newValue)`
Reports a bound property change.
`void`
`firePropertyChange(String propertyName, long oldValue, long newValue)`
Reports a bound property change.
`void`
`firePropertyChange(String propertyName, short oldValue, short newValue)`
Reports a bound property change.
`protected void`
`firePropertyChange(String propertyName, Object oldValue, Object newValue)`
Support for reporting bound property changes for Object properties.
`Color`
`getBackground()`
Gets the background color of this component.
`Rectangle`
`getBounds()`
Gets the bounds of this component in the form of a `Rectangle` object.
`ColorModel`
`getColorModel()`
Gets the instance of `ColorModel` used to display the component on the output device.
`ComponentListener[]`
`getComponentListeners()`
Returns an array of all the component listeners registered on this component.
`ComponentOrientation`
`getComponentOrientation()`
Retrieves the language-sensitive orientation that is to be used to order the elements or text within this component.
`Cursor`
`getCursor()`
Gets the cursor set in the component.
`DropTarget`
`getDropTarget()`
Gets the `DropTarget` associated with this `Component`.
`Container`
`getFocusCycleRootAncestor()`
Returns the Container which is the focus cycle root of this Component's focus traversal cycle.
`FocusListener[]`
`getFocusListeners()`
Returns an array of all the focus listeners registered on this component.
`boolean`
`getFocusTraversalKeysEnabled()`
Returns whether focus traversal keys are enabled for this Component.
`Font`
`getFont()`
Gets the font of this component.
`Color`
`getForeground()`
Gets the foreground color of this component.
`GraphicsConfiguration`
`getGraphicsConfiguration()`
Gets the `GraphicsConfiguration` associated with this `Component`.
`HierarchyBoundsListener[]`
`getHierarchyBoundsListeners()`
Returns an array of all the hierarchy bounds listeners registered on this component.
`HierarchyListener[]`
`getHierarchyListeners()`
Returns an array of all the hierarchy listeners registered on this component.
`boolean`
`getIgnoreRepaint()`
Returns whether or not paint messages received from the operating system should be ignored.
`InputContext`
`getInputContext()`
Gets the input context used by this component for handling the communication with input methods when text is entered in this component.
`InputMethodListener[]`
`getInputMethodListeners()`
Returns an array of all the input method listeners registered on this component.
`InputMethodRequests`
`getInputMethodRequests()`
Gets the input method request handler which supports requests from input methods for this component.
`KeyListener[]`
`getKeyListeners()`
Returns an array of all the key listeners registered on this component.
`Locale`
`getLocale()`
Gets the locale of this component.
`Point`
`getLocation()`
Gets the location of this component in the form of a point specifying the component's top-left corner.
`Point`
`getLocationOnScreen()`
Gets the location of this component in the form of a point specifying the component's top-left corner in the screen's coordinate space.
`MouseListener[]`
`getMouseListeners()`
Returns an array of all the mouse listeners registered on this component.
`MouseMotionListener[]`
`getMouseMotionListeners()`
Returns an array of all the mouse motion listeners registered on this component.
`Point`
`getMousePosition()`
Returns the position of the mouse pointer in this `Component`'s coordinate space if the `Component` is directly under the mouse pointer, otherwise returns `null`.
`MouseWheelListener[]`
`getMouseWheelListeners()`
Returns an array of all the mouse wheel listeners registered on this component.
`String`
`getName()`
Gets the name of the component.
`Container`
`getParent()`
Gets the parent of this component.
`PropertyChangeListener[]`
`getPropertyChangeListeners()`
Returns an array of all the property change listeners registered on this component.
`PropertyChangeListener[]`
`getPropertyChangeListeners(String propertyName)`
Returns an array of all the listeners which have been associated with the named property.
`Dimension`
`getSize()`
Returns the size of this component in the form of a `Dimension` object.
`Toolkit`
`getToolkit()`
Gets the toolkit of this component.
`final Object`
`getTreeLock()`
Gets this component's locking object (the object that owns the thread synchronization monitor) for AWT component-tree and layout operations.
`boolean`
`gotFocus(Event evt, Object what)`
Deprecated.
As of JDK version 1.1, replaced by processFocusEvent(FocusEvent).
`boolean`
`handleEvent(Event evt)`
Deprecated.
As of JDK version 1.1 replaced by processEvent(AWTEvent).
`boolean`
`hasFocus()`
Returns `true` if this `Component` is the focus owner.
`boolean`
`inside(int x, int y)`
Deprecated.
As of JDK version 1.1, replaced by contains(int, int).
`boolean`
`isBackgroundSet()`
Returns whether the background color has been explicitly set for this Component.
`boolean`
`isCursorSet()`
Returns whether the cursor has been explicitly set for this Component.
`boolean`
`isDisplayable()`
Determines whether this component is displayable.
`boolean`
`isEnabled()`
Determines whether this component is enabled.
`boolean`
`isFocusable()`
Returns whether this Component can be focused.
`boolean`
`isFocusOwner()`
Returns `true` if this `Component` is the focus owner.
`boolean`
`isFocusTraversable()`
Deprecated.
As of 1.4, replaced by `isFocusable()`.
`boolean`
`isFontSet()`
Returns whether the font has been explicitly set for this Component.
`boolean`
`isForegroundSet()`
Returns whether the foreground color has been explicitly set for this Component.
`boolean`
`isLightweight()`
A lightweight component doesn't have a native toolkit peer.
`boolean`
`isMaximumSizeSet()`
Returns true if the maximum size has been set to a non-`null` value otherwise returns false.
`boolean`
`isMinimumSizeSet()`
Returns whether or not `setMinimumSize` has been invoked with a non-null value.
`boolean`
`isPreferredSizeSet()`
Returns true if the preferred size has been set to a non-`null` value otherwise returns false.
`boolean`
`isShowing()`
Determines whether this component is showing on screen.
`boolean`
`isValid()`
Determines whether this component is valid.
`boolean`
`isVisible()`
Determines whether this component should be visible when its parent is visible.
`boolean`
`keyDown(Event evt, int key)`
Deprecated.
As of JDK version 1.1, replaced by processKeyEvent(KeyEvent).
`boolean`
`keyUp(Event evt, int key)`
Deprecated.
As of JDK version 1.1, replaced by processKeyEvent(KeyEvent).
`void`
`list()`
Prints a listing of this component to the standard system output stream `System.out`.
`void`
`list(PrintStream out)`
Prints a listing of this component to the specified output stream.
`void`
`list(PrintWriter out)`
Prints a listing to the specified print writer.
`Point`
`location()`
Deprecated.
As of JDK version 1.1, replaced by `getLocation()`.
`boolean`
`lostFocus(Event evt, Object what)`
Deprecated.
As of JDK version 1.1, replaced by processFocusEvent(FocusEvent).
`boolean`
`mouseDown(Event evt, int x, int y)`
Deprecated.
As of JDK version 1.1, replaced by processMouseEvent(MouseEvent).
`boolean`
`mouseDrag(Event evt, int x, int y)`
Deprecated.
As of JDK version 1.1, replaced by processMouseMotionEvent(MouseEvent).
`boolean`
`mouseEnter(Event evt, int x, int y)`
Deprecated.
As of JDK version 1.1, replaced by processMouseEvent(MouseEvent).
`boolean`
`mouseExit(Event evt, int x, int y)`
Deprecated.
As of JDK version 1.1, replaced by processMouseEvent(MouseEvent).
`boolean`
`mouseMove(Event evt, int x, int y)`
Deprecated.
As of JDK version 1.1, replaced by processMouseMotionEvent(MouseEvent).
`boolean`
`mouseUp(Event evt, int x, int y)`
Deprecated.
As of JDK version 1.1, replaced by processMouseEvent(MouseEvent).
`void`
`move(int x, int y)`
Deprecated.
As of JDK version 1.1, replaced by `setLocation(int, int)`.
`void`
`nextFocus()`
Deprecated.
As of JDK version 1.1, replaced by transferFocus().
`void`
`paintAll(Graphics g)`
Paints this component and all of its subcomponents.
`boolean`
`postEvent(Event e)`
Deprecated.
As of JDK version 1.1, replaced by dispatchEvent(AWTEvent).
`boolean`
`prepareImage(Image image, int width, int height, ImageObserver observer)`
Prepares an image for rendering on this component at the specified width and height.
`boolean`
`prepareImage(Image image, ImageObserver observer)`
Prepares an image for rendering on this component.
`protected void`
`processComponentEvent(ComponentEvent e)`
Processes component events occurring on this component by dispatching them to any registered `ComponentListener` objects.
`protected void`
`processFocusEvent(FocusEvent e)`
Processes focus events occurring on this component by dispatching them to any registered `FocusListener` objects.
`protected void`
`processHierarchyBoundsEvent(HierarchyEvent e)`
Processes hierarchy bounds events occurring on this component by dispatching them to any registered `HierarchyBoundsListener` objects.
`protected void`
`processHierarchyEvent(HierarchyEvent e)`
Processes hierarchy events occurring on this component by dispatching them to any registered `HierarchyListener` objects.
`protected void`
`processInputMethodEvent(InputMethodEvent e)`
Processes input method events occurring on this component by dispatching them to any registered `InputMethodListener` objects.
`protected void`
`processMouseWheelEvent(MouseWheelEvent e)`
Processes mouse wheel events occurring on this component by dispatching them to any registered `MouseWheelListener` objects.
`void`
`remove(MenuComponent popup)`
Removes the specified popup menu from the component.
`void`
`removeComponentListener(ComponentListener l)`
Removes the specified component listener so that it no longer receives component events from this component.
`void`
`removeFocusListener(FocusListener l)`
Removes the specified focus listener so that it no longer receives focus events from this component.
`void`
`removeHierarchyBoundsListener(HierarchyBoundsListener l)`
Removes the specified hierarchy bounds listener so that it no longer receives hierarchy bounds events from this component.
`void`
`removeHierarchyListener(HierarchyListener l)`
Removes the specified hierarchy listener so that it no longer receives hierarchy changed events from this component.
`void`
`removeInputMethodListener(InputMethodListener l)`
Removes the specified input method listener so that it no longer receives input method events from this component.
`void`
`removeKeyListener(KeyListener l)`
Removes the specified key listener so that it no longer receives key events from this component.
`void`
`removeMouseListener(MouseListener l)`
Removes the specified mouse listener so that it no longer receives mouse events from this component.
`void`
`removeMouseMotionListener(MouseMotionListener l)`
Removes the specified mouse motion listener so that it no longer receives mouse motion events from this component.
`void`
`removeMouseWheelListener(MouseWheelListener l)`
Removes the specified mouse wheel listener so that it no longer receives mouse wheel events from this component.
`void`
`removePropertyChangeListener(PropertyChangeListener listener)`
Removes a PropertyChangeListener from the listener list.
`void`
`removePropertyChangeListener(String propertyName, PropertyChangeListener listener)`
Removes a `PropertyChangeListener` from the listener list for a specific property.
`void`
`repaint()`
Repaints this component.
`void`
`repaint(int x, int y, int width, int height)`
Repaints the specified rectangle of this component.
`void`
`repaint(long tm)`
Repaints the component.
`protected boolean`
`requestFocus(boolean temporary, FocusEvent.Cause cause)`
Requests by the reason of `cause` that this `Component` get the input focus, and that this `Component`'s top-level ancestor become the focused `Window`.
`void`
`requestFocus(FocusEvent.Cause cause)`
Requests by the reason of `cause` that this Component get the input focus, and that this Component's top-level ancestor become the focused Window.
`boolean`
`requestFocusInWindow(FocusEvent.Cause cause)`
Requests by the reason of `cause` that this Component get the input focus, if this Component's top-level ancestor is already the focused Window.
`void`
`resize(int width, int height)`
Deprecated.
As of JDK version 1.1, replaced by `setSize(int, int)`.
`void`
`resize(Dimension d)`
Deprecated.
As of JDK version 1.1, replaced by `setSize(Dimension)`.
`void`
`setBounds(int x, int y, int width, int height)`
Moves and resizes this component.
`void`
`setBounds(Rectangle r)`
Moves and resizes this component to conform to the new bounding rectangle `r`.
`void`
`setComponentOrientation(ComponentOrientation o)`
Sets the language-sensitive orientation that is to be used to order the elements or text within this component.
`void`
`setCursor(Cursor cursor)`
Sets the cursor image to the specified cursor.
`void`
`setDropTarget(DropTarget dt)`
Associate a `DropTarget` with this component.
`void`
`setFocusable(boolean focusable)`
Sets the focusable state of this Component to the specified value.
`void`
`setFocusTraversalKeysEnabled(boolean focusTraversalKeysEnabled)`
Sets whether focus traversal keys are enabled for this Component.
`void`
`setIgnoreRepaint(boolean ignoreRepaint)`
Sets whether or not paint messages received from the operating system should be ignored.
`void`
`setLocale(Locale l)`
Sets the locale of this component.
`void`
`setLocation(int x, int y)`
Moves this component to a new location.
`void`
`setLocation(Point p)`
Moves this component to a new location.
`void`
`setMixingCutoutShape(Shape shape)`
Sets a 'mixing-cutout' shape for this lightweight component.
`void`
`setName(String name)`
Sets the name of the component to the specified string.
`void`
`setSize(int width, int height)`
Resizes this component so that it has width `width` and height `height`.
`void`
`setSize(Dimension d)`
Resizes this component so that it has width `d.width` and height `d.height`.
`void`
`show()`
Deprecated.
As of JDK version 1.1, replaced by `setVisible(boolean)`.
`void`
`show(boolean b)`
Deprecated.
As of JDK version 1.1, replaced by `setVisible(boolean)`.
`Dimension`
`size()`
Deprecated.
As of JDK version 1.1, replaced by `getSize()`.
`String`
`toString()`
Returns a string representation of this component and its values.
`void`
`transferFocus()`
Transfers the focus to the next component, as though this Component were the focus owner.
`void`
`transferFocusBackward()`
Transfers the focus to the previous component, as though this Component were the focus owner.
`void`
`transferFocusUpCycle()`
Transfers the focus up one focus traversal cycle.

### Methods declared in class Object

`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`
Modifier and Type
Method
Description
`protected Object`
`clone()`
Creates and returns a copy of this object.
`boolean`
`equals(Object obj)`
Indicates whether some other object is "equal to" this one.
`protected void`
`finalize()`
Deprecated, for removal: This API element is subject to removal in a future version.
Finalization is deprecated and subject to removal in a future release.
`final Class<?>`
`getClass()`
Returns the runtime class of this `Object`.
`int`
`hashCode()`
Returns a hash code value for this object.
`final void`
`notify()`
Wakes up a single thread that is waiting on this object's monitor.
`final void`
`notifyAll()`
Wakes up all threads that are waiting on this object's monitor.
`final void`
`wait()`
Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
`final void`
`wait(long timeoutMillis)`
Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`
`wait(long timeoutMillis, int nanos)`
Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

## Field Details

### sliderModel

protected BoundedRangeModel sliderModel
The data model that handles the numeric maximum value, minimum value, and current-position value for the slider.

### majorTickSpacing

protected int majorTickSpacing
The number of values between the major tick marks -- the larger marks that break up the minor tick marks.

### minorTickSpacing

protected int minorTickSpacing
The number of values between the minor tick marks -- the smaller marks that occur between the major tick marks.

See Also:
  - `setMinorTickSpacing(int)`

### snapToTicks

protected boolean snapToTicks
If true, the knob (and the data value it represents) resolve to the closest tick mark next to where the user positioned the knob. The default is false.

See Also:
  - `setSnapToTicks(boolean)`

### orientation

protected int orientation
Whether the slider is horizontal or vertical The default is horizontal.

See Also:
  - `setOrientation(int)`

### changeListener

protected ChangeListener changeListener
The changeListener (no suffix) is the listener we add to the slider's model. This listener is initialized to the `ChangeListener` returned from `createChangeListener`, which by default just forwards events to `ChangeListener`s (if any) added directly to the slider.

See Also:
  - `addChangeListener(ChangeListener)`
  - `createChangeListener()`

### changeEvent

protected transient ChangeEvent changeEvent
Only one `ChangeEvent` is needed per slider instance since the event's only (read-only) state is the source property. The source of events generated here is always "this". The event is lazily created the first time that an event notification is fired.

See Also:
  - `fireStateChanged()`

## Constructor Details

### JSlider

public JSlider()
Creates a horizontal slider with the range 0 to 100 and an initial value of 50.

### JSlider

public JSlider(int orientation)
Creates a slider using the specified orientation with the range `0` to `100` and an initial value of `50`. The orientation can be either `SwingConstants.VERTICAL` or `SwingConstants.HORIZONTAL`.

Parameters:
  `orientation` - the orientation of the slider
Throws:
  `IllegalArgumentException` - if orientation is not one of `VERTICAL`, `HORIZONTAL`
See Also:
  - `setOrientation(int)`

### JSlider

public JSlider(int min, int max)
Creates a horizontal slider using the specified min and max with an initial value equal to the average of the min plus max.

The `BoundedRangeModel` that holds the slider's data handles any issues that may arise from improperly setting the minimum and maximum values on the slider. See the `BoundedRangeModel` documentation for details.

Parameters:
  `min` - the minimum value of the slider
  `max` - the maximum value of the slider
See Also:
  - `BoundedRangeModel`
  - `setMinimum(int)`
  - `setMaximum(int)`

### JSlider

public JSlider(int min, int max, int value)
Creates a horizontal slider using the specified min, max and value.

The `BoundedRangeModel` that holds the slider's data handles any issues that may arise from improperly setting the minimum, initial, and maximum values on the slider. See the `BoundedRangeModel` documentation for details.

Parameters:
  `min` - the minimum value of the slider
  `max` - the maximum value of the slider
  `value` - the initial value of the slider
See Also:
  - `BoundedRangeModel`
  - `setMinimum(int)`
  - `setMaximum(int)`
  - `setValue(int)`

### JSlider

public JSlider(int orientation, int min, int max, int value)
Creates a slider with the specified orientation and the specified minimum, maximum, and initial values. The orientation can be either `SwingConstants.VERTICAL` or `SwingConstants.HORIZONTAL`.

The `BoundedRangeModel` that holds the slider's data handles any issues that may arise from improperly setting the minimum, initial, and maximum values on the slider. See the `BoundedRangeModel` documentation for details.

Parameters:
  `orientation` - the orientation of the slider
  `min` - the minimum value of the slider
  `max` - the maximum value of the slider
  `value` - the initial value of the slider
Throws:
  `IllegalArgumentException` - if orientation is not one of `VERTICAL`, `HORIZONTAL`
See Also:
  - `BoundedRangeModel`
  - `setOrientation(int)`
  - `setMinimum(int)`
  - `setMaximum(int)`
  - `setValue(int)`

### JSlider

public JSlider(BoundedRangeModel brm)
Creates a horizontal slider using the specified BoundedRangeModel.

Parameters:
  `brm` - a `BoundedRangeModel` for the slider

## Method Details

### getUI

public SliderUI getUI()
Gets the UI object which implements the L&F for this component.

Overrides:
  `getUI` in class `JComponent`
Returns:
  the SliderUI object that implements the Slider L&F

### setUI

@BeanProperty(hidden=true, visualUpdate=true, description="The UI object that implements the slider's LookAndFeel.") public void setUI(SliderUI ui)
Sets the UI object which implements the L&F for this component.

Parameters:
  `ui` - the SliderUI L&F object
See Also:
  - `UIDefaults.getUI(JComponent)`

### updateUI

public void updateUI()
Resets the UI property to a value from the current look and feel.

Overrides:
  `updateUI` in class `JComponent`
See Also:
  - `JComponent.updateUI()`

### getUIClassID

@BeanProperty(bound=false) public String getUIClassID()
Returns the name of the L&F class that renders this component.

Overrides:
  `getUIClassID` in class `JComponent`
Returns:
  the string "SliderUI"
See Also:
  - `JComponent.getUIClassID()`
  - `UIDefaults.getUI(JComponent)`

### createChangeListener

protected ChangeListener createChangeListener()
Subclasses that want to handle `ChangeEvent`s from the model differently can override this to return an instance of a custom `ChangeListener` implementation. The default `ChangeListener` simply calls the `fireStateChanged` method to forward `ChangeEvent`s to the `ChangeListener`s that have been added directly to the slider.

Returns:
  a instance of new `ChangeListener`
See Also:
  - `changeListener`
  - `fireStateChanged()`
  - `ChangeListener`
  - `BoundedRangeModel`

### addChangeListener

public void addChangeListener(ChangeListener l)
Adds a ChangeListener to the slider.

Parameters:
  `l` - the ChangeListener to add
See Also:
  - `fireStateChanged()`
  - `removeChangeListener(ChangeListener)`

### removeChangeListener

public void removeChangeListener(ChangeListener l)
Removes a ChangeListener from the slider.

Parameters:
  `l` - the ChangeListener to remove
See Also:
  - `fireStateChanged()`
  - `addChangeListener(ChangeListener)`

### getChangeListeners

@BeanProperty(bound=false) public ChangeListener[] getChangeListeners()
Returns an array of all the `ChangeListener`s added to this JSlider with addChangeListener().

Returns:
  all of the `ChangeListener`s added or an empty array if no listeners have been added
Since:
  1.4

### fireStateChanged

protected void fireStateChanged()
Send a `ChangeEvent`, whose source is this `JSlider`, to all `ChangeListener`s that have registered interest in `ChangeEvent`s. This method is called each time a `ChangeEvent` is received from the model.

The event instance is created if necessary, and stored in `changeEvent`.

See Also:
  - `addChangeListener(ChangeListener)`
  - `EventListenerList`

### getModel

public BoundedRangeModel getModel()
Returns the `BoundedRangeModel` that handles the slider's three fundamental properties: minimum, maximum, value.

Returns:
  the data model for this component
See Also:
  - `setModel(BoundedRangeModel)`
  - `BoundedRangeModel`

### setModel

@BeanProperty(description="The sliders BoundedRangeModel.") public void setModel(BoundedRangeModel newModel)
Sets the `BoundedRangeModel` that handles the slider's three fundamental properties: minimum, maximum, value.

Attempts to pass a `null` model to this method result in undefined behavior, and, most likely, exceptions.

Parameters:
  `newModel` - the new, `non-null` `BoundedRangeModel` to use
See Also:
  - `getModel()`
  - `BoundedRangeModel`

### getValue

public int getValue()
Returns the slider's current value from the `BoundedRangeModel`.

Returns:
  the current value of the slider
See Also:
  - `setValue(int)`
  - `BoundedRangeModel.getValue()`

### setValue

@BeanProperty(bound=false, preferred=true, description="The sliders current value.") public void setValue(int n)
Sets the slider's current value to `n`. This method forwards the new value to the model.

The data model (an instance of `BoundedRangeModel`) handles any mathematical issues arising from assigning faulty values. See the `BoundedRangeModel` documentation for details.

If the new value is different from the previous value, all change listeners are notified.

Parameters:
  `n` - the new value
See Also:
  - `getValue()`
  - `addChangeListener(ChangeListener)`
  - `BoundedRangeModel.setValue(int)`

### getMinimum

public int getMinimum()
Returns the minimum value supported by the slider from the `BoundedRangeModel`.

Returns:
  the value of the model's minimum property
See Also:
  - `setMinimum(int)`
  - `BoundedRangeModel.getMinimum()`

### setMinimum

@BeanProperty(preferred=true, description="The sliders minimum value.") public void setMinimum(int minimum)
Sets the slider's minimum value to `minimum`. This method forwards the new minimum value to the model.

The data model (an instance of `BoundedRangeModel`) handles any mathematical issues arising from assigning faulty values. See the `BoundedRangeModel` documentation for details.

If the new minimum value is different from the previous minimum value, all change listeners are notified.

Parameters:
  `minimum` - the new minimum
See Also:
  - `getMinimum()`
  - `addChangeListener(ChangeListener)`
  - `BoundedRangeModel.setMinimum(int)`

### getMaximum

public int getMaximum()
Returns the maximum value supported by the slider from the `BoundedRangeModel`.

Returns:
  the value of the model's maximum property
See Also:
  - `setMaximum(int)`
  - `BoundedRangeModel.getMaximum()`

### setMaximum

@BeanProperty(preferred=true, description="The sliders maximum value.") public void setMaximum(int maximum)
Sets the slider's maximum value to `maximum`. This method forwards the new maximum value to the model.

The data model (an instance of `BoundedRangeModel`) handles any mathematical issues arising from assigning faulty values. See the `BoundedRangeModel` documentation for details.

If the new maximum value is different from the previous maximum value, all change listeners are notified.

Parameters:
  `maximum` - the new maximum
See Also:
  - `getMaximum()`
  - `addChangeListener(ChangeListener)`
  - `BoundedRangeModel.setMaximum(int)`

### getValueIsAdjusting

public boolean getValueIsAdjusting()
Returns the `valueIsAdjusting` property from the model. For details on how this is used, see the `setValueIsAdjusting` documentation.

Returns:
  the value of the model's `valueIsAdjusting` property
See Also:
  - `setValueIsAdjusting(boolean)`

### setValueIsAdjusting

@BeanProperty(bound=false, expert=true, description="True if the slider knob is being dragged.") public void setValueIsAdjusting(boolean b)
Sets the model's `valueIsAdjusting` property. Slider look and feel implementations should set this property to `true` when a knob drag begins, and to `false` when the drag ends.

Parameters:
  `b` - the new value for the `valueIsAdjusting` property
See Also:
  - `getValueIsAdjusting()`
  - `BoundedRangeModel.setValueIsAdjusting(boolean)`

### getExtent

public int getExtent()
Returns the "extent" from the `BoundedRangeModel`. This represents the range of values "covered" by the knob.

Returns:
  an int representing the extent
See Also:
  - `setExtent(int)`
  - `BoundedRangeModel.getExtent()`

### setExtent

@BeanProperty(bound=false, expert=true, description="Size of the range covered by the knob.") public void setExtent(int extent)
Sets the size of the range "covered" by the knob. Most look and feel implementations will change the value by this amount if the user clicks on either side of the knob. This method just forwards the new extent value to the model.

The data model (an instance of `BoundedRangeModel`) handles any mathematical issues arising from assigning faulty values. See the `BoundedRangeModel` documentation for details.

If the new extent value is different from the previous extent value, all change listeners are notified.

Parameters:
  `extent` - the new extent
See Also:
  - `getExtent()`
  - `BoundedRangeModel.setExtent(int)`

### getOrientation

public int getOrientation()
Return this slider's vertical or horizontal orientation.

Returns:
  `SwingConstants.VERTICAL` or `SwingConstants.HORIZONTAL`
See Also:
  - `setOrientation(int)`

### setOrientation

@BeanProperty(preferred=true, visualUpdate=true, enumerationValues={"JSlider.VERTICAL","JSlider.HORIZONTAL"}, description="Set the scrollbars orientation to either VERTICAL or HORIZONTAL.") public void setOrientation(int orientation)
Set the slider's orientation to either `SwingConstants.VERTICAL` or `SwingConstants.HORIZONTAL`.

Parameters:
  `orientation` - `HORIZONTAL` or `VERTICAL`
Throws:
  `IllegalArgumentException` - if orientation is not one of `VERTICAL`, `HORIZONTAL`
See Also:
  - `getOrientation()`

### setFont

public void setFont(Font font)
Sets the font for this component.

Overrides:
  `setFont` in class `JComponent`
Parameters:
  `font` - the desired `Font` for this component
Since:
  1.6
See Also:
  - `Component.getFont()`

### imageUpdate

public boolean imageUpdate(Image img, int infoflags, int x, int y, int w, int h)
Repaints the component when the image has changed. This `imageUpdate` method of an `ImageObserver` is called when more information about an image which had been previously requested using an asynchronous routine such as the `drawImage` method of `Graphics` becomes available. See the definition of `imageUpdate` for more information on this method and its arguments.

The `imageUpdate` method of `Component` incrementally draws an image on the component as more of the bits of the image are available.

If the system property `awt.image.incrementaldraw` is missing or has the value `true`, the image is incrementally drawn. If the system property has any other value, then the image is not drawn until it has been completely loaded.

Also, if incremental drawing is in effect, the value of the system property `awt.image.redrawrate` is interpreted as an integer to give the maximum redraw rate, in milliseconds. If the system property is missing or cannot be interpreted as an integer, the redraw rate is once every 100ms.

The interpretation of the `x`, `y`, `width`, and `height` arguments depends on the value of the `infoflags` argument.

Specified by:
  `imageUpdate` in interface `ImageObserver`
Overrides:
  `imageUpdate` in class `Component`
Parameters:
  `img` - the image being observed
  `infoflags` - see `imageUpdate` for more information
  `x` - the x coordinate
  `y` - the y coordinate
  `w` - the width
  `h` - the height
Returns:
  `false` if the infoflags indicate that the image is completely loaded; `true` otherwise.
Since:
  1.7
See Also:
  - `ImageObserver`
  - `Graphics.drawImage(Image, int, int, Color, java.awt.image.ImageObserver)`
  - `Graphics.drawImage(Image, int, int, java.awt.image.ImageObserver)`
  - `Graphics.drawImage(Image, int, int, int, int, Color, java.awt.image.ImageObserver)`
  - `Graphics.drawImage(Image, int, int, int, int, java.awt.image.ImageObserver)`
  - `ImageObserver.imageUpdate(java.awt.Image, int, int, int, int, int)`

### getLabelTable

public Dictionary getLabelTable()
Returns the dictionary of what labels to draw at which values.

Returns:
  the `Dictionary` containing labels and where to draw them

### setLabelTable

@BeanProperty(hidden=true, visualUpdate=true, description="Specifies what labels will be drawn for any given value.") public void setLabelTable(Dictionary labels)
Used to specify what label will be drawn at any given value. The key-value pairs are of this format: `{ Integer value, java.swing.JComponent label }`.

An easy way to generate a standard table of value labels is by using the `createStandardLabels` method.

Once the labels have been set, this method calls `updateLabelUIs()`. Note that the labels are only painted if the `paintLabels` property is `true`.

Parameters:
  `labels` - new `Dictionary` of labels, or `null` to remove all labels
See Also:
  - `createStandardLabels(int)`
  - `getLabelTable()`
  - `setPaintLabels(boolean)`

### updateLabelUIs

protected void updateLabelUIs()
Updates the UIs for the labels in the label table by calling `updateUI` on each label. The UIs are updated from the current look and feel. The labels are also set to their preferred size.

See Also:
  - `setLabelTable(Dictionary)`
  - `JComponent.updateUI()`

### createStandardLabels

public Hashtable<Integer, JComponent> createStandardLabels(int increment)
Creates a `Hashtable` of numerical text labels, starting at the slider minimum, and using the increment specified. For example, if you call `createStandardLabels( 10 )` and the slider minimum is zero, then labels will be created for the values 0, 10, 20, 30, and so on.

For the labels to be drawn on the slider, the returned `Hashtable` must be passed into `setLabelTable`, and `setPaintLabels` must be set to `true`.

For further details on the makeup of the returned `Hashtable`, see the `setLabelTable` documentation.

Parameters:
  `increment` - distance between labels in the generated hashtable
Returns:
  a new `Hashtable` of labels
Throws:
  `IllegalArgumentException` - if `increment` is less than or equal to zero
See Also:
  - `setLabelTable(Dictionary)`
  - `setPaintLabels(boolean)`

### createStandardLabels

public Hashtable<Integer, JComponent> createStandardLabels(int increment, int start)
Creates a `Hashtable` of numerical text labels, starting at the starting point specified, and using the increment specified. For example, if you call `createStandardLabels( 10, 2 )`, then labels will be created for the values 2, 12, 22, 32, and so on.

For the labels to be drawn on the slider, the returned `Hashtable` must be passed into `setLabelTable`, and `setPaintLabels` must be set to `true`.

For further details on the makeup of the returned `Hashtable`, see the `setLabelTable` documentation.

Parameters:
  `increment` - distance between labels in the generated hashtable
  `start` - value at which the labels will begin
Returns:
  a new `Hashtable` of labels
Throws:
  `IllegalArgumentException` - if `start` is out of range, or if `increment` is less than or equal to zero
See Also:
  - `setLabelTable(Dictionary)`
  - `setPaintLabels(boolean)`

### getInverted

public boolean getInverted()
Returns true if the value-range shown for the slider is reversed,

Returns:
  true if the slider values are reversed from their normal order
See Also:
  - `setInverted(boolean)`

### setInverted

@BeanProperty(visualUpdate=true, description="If true reverses the slider values from their normal order") public void setInverted(boolean b)
Specify true to reverse the value-range shown for the slider and false to put the value range in the normal order. The order depends on the slider's `ComponentOrientation` property. Normal (non-inverted) horizontal sliders with a `ComponentOrientation` value of `LEFT_TO_RIGHT` have their maximum on the right. Normal horizontal sliders with a `ComponentOrientation` value of `RIGHT_TO_LEFT` have their maximum on the left. Normal vertical sliders have their maximum on the top. These labels are reversed when the slider is inverted.

By default, the value of this property is `false`.

Parameters:
  `b` - true to reverse the slider values from their normal order

### getMajorTickSpacing

public int getMajorTickSpacing()
This method returns the major tick spacing. The number that is returned represents the distance, measured in values, between each major tick mark. If you have a slider with a range from 0 to 50 and the major tick spacing is set to 10, you will get major ticks next to the following values: 0, 10, 20, 30, 40, 50.

Returns:
  the number of values between major ticks
See Also:
  - `setMajorTickSpacing(int)`

### setMajorTickSpacing

@BeanProperty(visualUpdate=true, description="Sets the number of values between major tick marks.") public void setMajorTickSpacing(int n)
This method sets the major tick spacing. The number that is passed in represents the distance, measured in values, between each major tick mark. If you have a slider with a range from 0 to 50 and the major tick spacing is set to 10, you will get major ticks next to the following values: 0, 10, 20, 30, 40, 50.

In order for major ticks to be painted, `setPaintTicks` must be set to `true`.

This method will also set up a label table for you. If there is not already a label table, and the major tick spacing is `> 0`, and `getPaintLabels` returns `true`, a standard label table will be generated (by calling `createStandardLabels`) with labels at the major tick marks. For the example above, you would get text labels: "0", "10", "20", "30", "40", "50". The label table is then set on the slider by calling `setLabelTable`.

Parameters:
  `n` - new value for the `majorTickSpacing` property
See Also:
  - `getMajorTickSpacing()`
  - `setPaintTicks(boolean)`
  - `setLabelTable(Dictionary)`
  - `createStandardLabels(int)`

### getMinorTickSpacing

public int getMinorTickSpacing()
This method returns the minor tick spacing. The number that is returned represents the distance, measured in values, between each minor tick mark. If you have a slider with a range from 0 to 50 and the minor tick spacing is set to 10, you will get minor ticks next to the following values: 0, 10, 20, 30, 40, 50.

Returns:
  the number of values between minor ticks
See Also:
  - `getMinorTickSpacing()`

### setMinorTickSpacing

@BeanProperty(visualUpdate=true, description="Sets the number of values between minor tick marks.") public void setMinorTickSpacing(int n)
This method sets the minor tick spacing. The number that is passed in represents the distance, measured in values, between each minor tick mark. If you have a slider with a range from 0 to 50 and the minor tick spacing is set to 10, you will get minor ticks next to the following values: 0, 10, 20, 30, 40, 50.

In order for minor ticks to be painted, `setPaintTicks` must be set to `true`.

Parameters:
  `n` - new value for the `minorTickSpacing` property
See Also:
  - `getMinorTickSpacing()`
  - `setPaintTicks(boolean)`

### getSnapToTicks

public boolean getSnapToTicks()
Returns true if the knob (and the data value it represents) resolve to the closest tick mark next to where the user positioned the knob.

Returns:
  true if the value snaps to the nearest tick mark, else false
See Also:
  - `setSnapToTicks(boolean)`

### setSnapToTicks

@BeanProperty(description="If true snap the knob to the nearest tick mark.") public void setSnapToTicks(boolean b)
Specifying true makes the knob (and the data value it represents) resolve to the closest tick mark next to where the user positioned the knob. By default, this property is `false`.

Parameters:
  `b` - true to snap the knob to the nearest tick mark
See Also:
  - `getSnapToTicks()`

### getPaintTicks

public boolean getPaintTicks()
Tells if tick marks are to be painted.

Returns:
  true if tick marks are painted, else false
See Also:
  - `setPaintTicks(boolean)`

### setPaintTicks

@BeanProperty(visualUpdate=true, description="If true tick marks are painted on the slider.") public void setPaintTicks(boolean b)
Determines whether tick marks are painted on the slider. By default, this property is `false`.

Parameters:
  `b` - whether or not tick marks should be painted
See Also:
  - `getPaintTicks()`

### getPaintTrack

public boolean getPaintTrack()
Tells if the track (area the slider slides in) is to be painted.

Returns:
  true if track is painted, else false
See Also:
  - `setPaintTrack(boolean)`

### setPaintTrack

@BeanProperty(visualUpdate=true, description="If true, the track is painted on the slider.") public void setPaintTrack(boolean b)
Determines whether the track is painted on the slider. By default, this property is `true`. It is up to the look and feel to honor this property, some may choose to ignore it.

Parameters:
  `b` - whether or not to paint the slider track
See Also:
  - `getPaintTrack()`

### getPaintLabels

public boolean getPaintLabels()
Tells if labels are to be painted.

Returns:
  true if labels are painted, else false
See Also:
  - `setPaintLabels(boolean)`

### setPaintLabels

@BeanProperty(visualUpdate=true, description="If true labels are painted on the slider.") public void setPaintLabels(boolean b)
Determines whether labels are painted on the slider.

This method will also set up a label table for you. If there is not already a label table, and the major tick spacing is `> 0`, a standard label table will be generated (by calling `createStandardLabels`) with labels at the major tick marks. The label table is then set on the slider by calling `setLabelTable`.

By default, this property is `false`.

Parameters:
  `b` - whether or not to paint labels
See Also:
  - `getPaintLabels()`
  - `getLabelTable()`
  - `createStandardLabels(int)`

### paramString

protected String paramString()
Returns a string representation of this JSlider. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not be `null`.

Overrides:
  `paramString` in class `JComponent`
Returns:
  a string representation of this JSlider.

### getAccessibleContext

@BeanProperty(bound=false) public AccessibleContext getAccessibleContext()
Gets the AccessibleContext associated with this JSlider. For sliders, the AccessibleContext takes the form of an AccessibleJSlider. A new AccessibleJSlider instance is created if necessary.

Specified by:
  `getAccessibleContext` in interface `Accessible`
Overrides:
  `getAccessibleContext` in class `Component`
Returns:
  an AccessibleJSlider that serves as the AccessibleContext of this JSlider