Interrupt a sleeping,waiting thread.

interrupt() method interrupts a sleeping thread during its sleeping time.

• In the below example the main thread waits for the MyThread to complete using join method for 2 seconds.
• If the MyThread does not completes its execution in 2 seconds, then main thread interrupts MyThread and check if the Thread is still alive in loop.

class MyThread extends Thread { 
	public void run() 
	{
		for (int i = 0; i < 500; i++) {
			System.out.println("Child Thread executing : "+i);
			try { 
					Thread.sleep(500); 
				} 
			catch (InterruptedException e) { 
				System.out.println("Interrupted Exception occured"); 
			}
		}
	} 
} 

class Test { 
	public static void main(String[] args) 
			throws InterruptedException 
	{ 
		MyThread thread = new MyThread(); 
		thread.start(); 
		while(thread.isAlive()) {
			thread.join(2000);
			thread.interrupt();
		}
		System.out.println("Main thread execution completes"); 
	} 
}