The CountDownLatch class in java.util.concurrent package.

Purpose

The CountDownLatch class in java.util.concurrent package.

Key Methods

Method Description
key methods See JavaDoc for full API

Example 

  CountDownLatch obj = /* instantiate or obtain reference */;
// Use CountDownLatch per JavaDoc

Best Practices

  • Prefer CountDownLatch from java.java.util.concurrent over custom reimplementations
  • Check thread safety requirements before sharing instances across threads
  • Consult the official JavaDoc for version-specific behavior changes
  • Use try-with-resources when the API implements AutoCloseable