JAVA EE: Java Tutorial: Java Threads (Interrupting a Thread

Thursday 9 February 2017

Java Tutorial: Java Threads (Interrupting a Thread | Java thread interrupt)

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Java Tutorial: Java Threads (Interrupting a Thread | Java thread interrupt)

DisplayThread.java

/*
 * Example of interrupting a thread that stops
 * working.
 * 
 * In this example, after interrupting the thread, we
 * are propagating it, so it will stop working. If we
 * don't want to stop the thread, we can handle it where
 * sleep() or wait() method is invoked.
 */
class DisplayThread extends Thread
{

    public static void main(String args[])
    {
        DisplayThread t1 = new DisplayThread();
        t1.start();
        try
        {
            t1.interrupt();
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }

    }

    public void run()
    {
        try
        {
            System.out.println("Going to sleep...");
            Thread.sleep(1000);
            System.out.println("Welcome to India...");
        }
        catch (InterruptedException e)
        {
            throw new RuntimeException("Thread interrupted... " + e);
        }

    }

}

Output

Exception in thread "Thread-0" Going to sleep...
java.lang.RuntimeException: Thread interrupted... 
java.lang.InterruptedException: sleep interrupted
    at DisplayThread.run(DisplayThread.java:38)