# Uses of Class
java.util.concurrent.ConcurrentHashMap.KeySetView

Packages that use ConcurrentHashMap.KeySetView
Package | Description
--- | ---
java.util.concurrent | Utility classes commonly useful in concurrent programming.

## Uses of ConcurrentHashMap.KeySetView in java.util.concurrent

Methods in java.util.concurrent that return ConcurrentHashMap.KeySetView
Modifier and Type | Method | Description
--- | --- | ---
`ConcurrentHashMap.KeySetView<K,​V>` | ConcurrentHashMap.`keySet()` | Returns a `Set` view of the keys contained in this map.
`ConcurrentHashMap.KeySetView<K,​V>` | ConcurrentHashMap.`keySet​(V mappedValue)` | Returns a `Set` view of the keys in this map, using the given common mapped value for any additions (i.e., `Collection.add(E)` and `Collection.addAll(Collection)`).
`static <K> ConcurrentHashMap.KeySetView<K,​Boolean>` | ConcurrentHashMap.`newKeySet()` | Creates a new `Set` backed by a ConcurrentHashMap from the given type to `Boolean.TRUE`.
`static <K> ConcurrentHashMap.KeySetView<K,​Boolean>` | ConcurrentHashMap.`newKeySet​(int initialCapacity)` | Creates a new `Set` backed by a ConcurrentHashMap from the given type to `Boolean.TRUE`.