Calling Thread.sleep() with *interrupted status* set?

Question

The Java documentation is not clear on this point. What happens if you call interrupt on a Thread before a call to Thread.sleep():

        //interrup         


        

Answer 1

You can use the following class to test the behavior. In this case, the loop is not interrupted and the thread dies when it gets to the sleep.

public class TestInterrupt{

public static void main(String[] args) throws InterruptedException {
    Thread t = new Thread(){
        public void run(){
            System.out.println("hello");
            try {
                for (int i = 0 ; i < 1000000; i++){
                    System.out.print(".");
                }
                Thread.sleep(10000);
            } catch (InterruptedException e) {
                System.out.println("interrupted");
                e.printStackTrace();  
            }

        }
    };
    t.start();
    Thread.sleep(100);
    System.out.println("about to interrupt.");
    t.interrupt();

}

}