public class MyThread extends Thread {
  private String name;
  private int delay;
  
  public MyThread(String aName, int delayInterval) {
    name = aName;
    delay = delayInterval;
  }

  public void run() {
    try {
      for (int i = 0; i < 20; i++) {
        System.out.println(name);
        Thread.sleep(delay);
      }
    } catch (InterruptedException e) { }    
  }
}