Java interrupt medthod

TestInterrupt.java

/*
 * Demonstrate thread.interrupt() method;
 */
package test.another;

import java.util.concurrent.TimeUnit;

public class TestInterrupt {
	public static void main(String[] args) {
		Thread t1,t2;
		t1 = new ThreadOne("t1",null,6);
		t2 = new ThreadOne("t2",t1,3);
		t1.start();
		t2.start();
	}

	static class ThreadOne extends Thread{
		private Thread other;
		private int sleepTime;
		public ThreadOne(String name, Thread other, int sleepTime){
			this.other=other;
			this.setName(name);
			this.sleepTime=sleepTime;
		}
		@Override
		public void run(){
			System.out.println(this.getName()+" thread starts.");
			try {
				TimeUnit.SECONDS.sleep(sleepTime);
			} catch (InterruptedException e) {
//				e.printStackTrace();
			}
			System.out.println(this.getName()+" awakes.");
			if(other!=null)
				other.interrupt();
		}
	}
}