A thread, t1, that waits for an explicit period of time for another thread, t2, to finish is in the TIMED_WAITING state.

This scenario is shaped in the following snippet of code:

1. Create a thread: t1.
2. Start t1 via the start() method.
3. In the run() method of t1, add a sleep time of two seconds (arbitrary time).
4. While t1 is running, the main thread prints the t1 state—the state should be TIMED_WAITING since t1 is in a sleep() that will expire after two seconds.

The code snippet is as follows:

public class TimedWaitingThread {

  public void timedWaitingThread() {
    Thread t = new Thread(() -> {
      Thread.sleep(2000);
    });

    t.start();

    Thread.sleep(500);

    System.out.println("TimedWaitingThread t: " 
      + t.getState()); // TIMED_WAITING
  }
}

TimedWaitingThread twt = new TimedWaitingThread();
twt.timedWaitingThread();