/** 
 * This program is an example from the book "Internet 
 * programming with Java" by Svetlin Nakov. It is freeware. 
 * For more information: http://www.nakov.com/books/inetjava/ 
 */ 
class MyThread extends Thread { 
    private String mName; 
    private long mTimeInterval; 
 
    public MyThread(String aName, long aTimeInterval) { 
        mName = aName; 
        mTimeInterval = aTimeInterval; 
    } 
 
    public void run() { 
        try { 
            while (!isInterrupted()) { 
                System.out.println(mName); 
                sleep(mTimeInterval); 
            } 
        } catch (InterruptedException intEx) { 
            // Current thread interrupted by another thread 
        } 
    } 
} 
 
public class ThreadTest 
{ 
    public static void main(String[] args) { 
        MyThread thread1 = new MyThread("thread 1", 1000); 
        MyThread thread2 = new MyThread("thread 2", 2000); 
        MyThread thread3 = new MyThread("thread 3", 1500); 
        thread1.start(); 
        thread2.start(); 
        thread3.start(); 
    } 
}