# Uses of Interface
java.util.concurrent.locks.Lock

Packages that use Lock
Package
Description
java.util.concurrent.locks
Interfaces and classes providing a framework for locking and waiting for conditions that is distinct from built-in synchronization and monitors.

- ## Uses of Lock in java.util.concurrent.locks

  Classes in java.util.concurrent.locks that implement Lock
  Modifier and Type
  Class
  Description
  `class`
  `ReentrantLock`
  A reentrant mutual exclusion `Lock` with the same basic behavior and semantics as the implicit monitor lock accessed using `synchronized` methods and statements, but with extended capabilities.
  `static class`
  `ReentrantReadWriteLock.ReadLock`
  The lock returned by method `ReentrantReadWriteLock.readLock()`.
  `static class`
  `ReentrantReadWriteLock.WriteLock`
  The lock returned by method `ReentrantReadWriteLock.writeLock()`.
  Methods in java.util.concurrent.locks that return Lock
  Modifier and Type
  Method
  Description
  `Lock`
  StampedLock.`asReadLock()`
  Returns a plain `Lock` view of this StampedLock in which the `lock()` method is mapped to `StampedLock.readLock()`, and similarly for other methods.
  `Lock`
  StampedLock.`asWriteLock()`
  Returns a plain `Lock` view of this StampedLock in which the `lock()` method is mapped to `StampedLock.writeLock()`, and similarly for other methods.
  `Lock`
  ReadWriteLock.`readLock()`
  Returns the lock used for reading.
  `Lock`
  ReadWriteLock.`writeLock()`
  Returns the lock used for writing.