What is the output from the following program? : Questions « Thread « SCJP

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public class MainClass {
  public static void main(String args[]) {
    MyThread t1 = new MyThread("t1");
    MyThread t2 = new MyThread("t2");
    t1.start();
    t2.start();
  }
}

class MyThread extends Thread {
  public void displayOutput(String s) {
    System.out.println(s);
  }

  public void run() {
    for (int i = 0; i < 10; ++i) {
      try {
        sleep((long) (3000 * Math.random()));
      } catch (Exception ex) {
      }
      displayOutput(getName());
    }
  }

  public MyThread(String s) {
    super(s);
  }
}