Each thread is associated with an instance of the class Thread. There are two basic strategies for using Thread objects to create a concurrent application.

• To directly control thread creation and management, simply instantiate Thread each time the application needs to initiate an asynchronous task.
• To abstract thread management from the rest of your application, pass the application's tasks to an executor.

This section documents the use of Thread objects. Executors are discussed with other high-level concurrency objects.