Do threads get automatically garbage collected after run() method exits in Java?

Question

Does a thread self-delete and get garbage collected after it runs or does it continue to exist and consume memory even after the run() method is complete?

For example:

Class A{
  public void somemethod()
  {
  while(true)
  new ThreadClass().start();
  }

   public class ThreadClass extends Thread{
        public ThreadClass()
        {}
        @Override
        public void run() {......}
     }
}

I want to clarify whether this thread will be automatically removed from memory, or does it need to be done explicitly.

Answer 1

This will happen automatically i.e. memory will be released automatically once the thread is done with its run method.

Answer 2

Threads only exist until the end of their run method, after that they are made eligible for garbage collection.

If you require a solution where memory is at a premium, you might want to consider an ExecutorService. This will handle the threads for you and allow you to concentrate on the logic rather than handling the threads and the memory.