## Uses of Class
java.util.Calendar

Packages that use Calendar
java.sql: Provides the API for accessing and processing data stored in a data source (usually a relational database) using the Java™ programming language.
java.text: Provides classes and interfaces for handling text, dates, numbers, and messages in a manner independent of natural languages.
java.util: Contains the collections framework, some internationalization support classes, a service loader, properties, random number generation, string parsing and scanning classes, base64 encoding and decoding, a bit array, and several miscellaneous utility classes.
javax.sql: Provides the API for server side data source access and processing from the Java™ programming language.
javax.sql.rowset: Standard interfaces and base classes for JDBC `RowSet` implementations.
javax.xml.datatype: Defines XML/Java Type Mappings.

### Uses of Calendar in java.sql

Methods in java.sql with parameters of type Calendar
`Date` CallableStatement.`getDate​(int parameterIndex, Calendar cal)` Retrieves the value of the designated JDBC `DATE` parameter as a `java.sql.Date` object, using the given `Calendar` object to construct the date.
`Date` CallableStatement.`getDate​(String parameterName, Calendar cal)` Retrieves the value of a JDBC `DATE` parameter as a `java.sql.Date` object, using the given `Calendar` object to construct the date.
`Date` ResultSet.`getDate​(int columnIndex, Calendar cal)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.sql.Date` object in the Java programming language.
`Date` ResultSet.`getDate​(String columnLabel, Calendar cal)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.sql.Date` object in the Java programming language.
`Time` CallableStatement.`getTime​(int parameterIndex, Calendar cal)` Retrieves the value of the designated JDBC `TIME` parameter as a `java.sql.Time` object, using the given `Calendar` object to construct the time.
`Time` CallableStatement.`getTime​(String parameterName, Calendar cal)` Retrieves the value of a JDBC `TIME` parameter as a `java.sql.Time` object, using the given `Calendar` object to construct the time.
`Time` ResultSet.`getTime​(int columnIndex, Calendar cal)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.sql.Time` object in the Java programming language.
`Time` ResultSet.`getTime​(String columnLabel, Calendar cal)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.sql.Time` object in the Java programming language.
`Timestamp` CallableStatement.`getTimestamp​(int parameterIndex, Calendar cal)` Retrieves the value of the designated JDBC `TIMESTAMP` parameter as a `java.sql.Timestamp` object, using the given `Calendar` object to construct the `Timestamp` object.
`Timestamp` CallableStatement.`getTimestamp​(String parameterName, Calendar cal)` Retrieves the value of a JDBC `TIMESTAMP` parameter as a `java.sql.Timestamp` object, using the given `Calendar` object to construct the `Timestamp` object.
`Timestamp` ResultSet.`getTimestamp​(int columnIndex, Calendar cal)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.sql.Timestamp` object in the Java programming language.
`Timestamp` ResultSet.`getTimestamp​(String columnLabel, Calendar cal)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.sql.Timestamp` object in the Java programming language.
`void` CallableStatement.`setDate​(String parameterName, Date x, Calendar cal)` Sets the designated parameter to the given `java.sql.Date` value, using the given `Calendar` object.
`void` PreparedStatement.`setDate​(int parameterIndex, Date x, Calendar cal)` Sets the designated parameter to the given `java.sql.Date` value, using the given `Calendar` object.
`void` CallableStatement.`setTime​(String parameterName, Time x, Calendar cal)` Sets the designated parameter to the given `java.sql.Time` value, using the given `Calendar` object.
`void` PreparedStatement.`setTime​(int parameterIndex, Time x, Calendar cal)` Sets the designated parameter to the given `java.sql.Time` value, using the given `Calendar` object.
`void` CallableStatement.`setTimestamp​(String parameterName, Timestamp x, Calendar cal)` Sets the designated parameter to the given `java.sql.Timestamp` value, using the given `Calendar` object.
`void` PreparedStatement.`setTimestamp​(int parameterIndex, Timestamp x, Calendar cal)` Sets the designated parameter to the given `java.sql.Timestamp` value, using the given `Calendar` object.

### Uses of Calendar in java.text

Fields in java.text declared as Calendar
`protected Calendar` DateFormat.`calendar` The `Calendar` instance used for calculating the date-time fields and the instant of time.

Methods in java.text that return Calendar
`Calendar` DateFormat.`getCalendar()` Gets the calendar associated with this date/time formatter.

Methods in java.text with parameters of type Calendar
`void` DateFormat.`setCalendar​(Calendar newCalendar)` Set the calendar to be used by this date format.

### Uses of Calendar in java.util

Subclasses of Calendar in java.util
`class` `GregorianCalendar` `GregorianCalendar` is a concrete subclass of `Calendar` and provides the standard calendar system used by most of the world.

Methods in java.util that return Calendar
`Calendar` Calendar.Builder.`build()` Returns a `Calendar` built from the parameters set by the setter methods.
`static Calendar` Calendar.`getInstance()` Gets a calendar using the default time zone and locale.
`static Calendar` Calendar.`getInstance​(Locale aLocale)` Gets a calendar using the default time zone and specified locale.
`static Calendar` Calendar.`getInstance​(TimeZone zone)` Gets a calendar using the specified time zone and default locale.
`static Calendar` Calendar.`getInstance​(TimeZone zone, Locale aLocale)` Gets a calendar with the specified time zone and locale.

Methods in java.util with parameters of type Calendar
`int` Calendar.`compareTo​(Calendar anotherCalendar)` Compares the time values (millisecond offsets from the Epoch) represented by two `Calendar` objects.

### Uses of Calendar in javax.sql

Methods in javax.sql with parameters of type Calendar
`void` RowSet.`setDate​(int parameterIndex, Date x, Calendar cal)` Sets the designated parameter in this `RowSet` object's command with the given `java.sql.Date` value.
`void` RowSet.`setDate​(String parameterName, Date x, Calendar cal)` Sets the designated parameter to the given `java.sql.Date` value, using the given `Calendar` object.
`void` RowSet.`setTime​(int parameterIndex, Time x, Calendar cal)` Sets the designated parameter in this `RowSet` object's command with the given `java.sql.Time` value.
`void` RowSet.`setTime​(String parameterName, Time x, Calendar cal)` Sets the designated parameter to the given `java.sql.Time` value, using the given `Calendar` object.
`void` RowSet.`setTimestamp​(int parameterIndex, Timestamp x, Calendar cal)` Sets the designated parameter in this `RowSet` object's command with the given `java.sql.Timestamp` value.
`void` RowSet.`setTimestamp​(String parameterName, Timestamp x, Calendar cal)` Sets the designated parameter to the given `java.sql.Timestamp` value, using the given `Calendar` object.

### Uses of Calendar in javax.sql.rowset

Methods in javax.sql.rowset with parameters of type Calendar
`void` BaseRowSet.`setDate​(int parameterIndex, Date x, Calendar cal)` Sets the designated parameter to the given `java.sql.Date` object.
`void` BaseRowSet.`setDate​(String parameterName, Date x, Calendar cal)` Sets the designated parameter to the given `java.sql.Date` value, using the given `Calendar` object.
`void` BaseRowSet.`setTime​(int parameterIndex, Time x, Calendar cal)` Sets the designated parameter to the given `java.sql.Time` object.
`void` BaseRowSet.`setTime​(String parameterName, Time x, Calendar cal)` Sets the designated parameter to the given `java.sql.Time` value, using the given `Calendar` object.
`void` BaseRowSet.`setTimestamp​(int parameterIndex, Timestamp x, Calendar cal)` Sets the designated parameter to the given `java.sql.Timestamp` object.
`void` BaseRowSet.`setTimestamp​(String parameterName, Timestamp x, Calendar cal)` Sets the designated parameter to the given `java.sql.Timestamp` value, using the given `Calendar` object.

### Uses of Calendar in javax.xml.datatype

Methods in javax.xml.datatype with parameters of type Calendar
`abstract void` Duration.`addTo​(Calendar calendar)` Adds this duration to a `Calendar` object.
`long` Duration.`getTimeInMillis​(Calendar startInstant)` Returns the length of the duration in milli-seconds.
`abstract Duration` Duration.`normalizeWith​(Calendar startTimeInstant)` Converts the years and months fields into the days field by using a specific time instant as the reference point.