A thread test sample for java. It shows the differece between runnable.run() and thread.start(). This code is originally from a J2EE community. I modified it for me.

ThreadTest.java

public class ThreadTest {
  /**
   * @param args
   */
  public static void main(String[] args) {
    System.out.println("Start!");
    
    Runnable r1 = new Runnable() {
      public void run() {
        try {
          for (int i=0; i<100; i++) {
            System.out.println("Runnable1" + ": " + i);
            Thread.sleep(100);
          }
        } catch (Exception ex){
          System.out.println(ex.getStackTrace());
        }
      }
    };
      
    Runnable r2 = new Runnable() {
      public void run() {
        try {
          for (int i=0; i<100; i++) {
            System.out.println("Runnable2" + ": " + i);
            Thread.sleep(100);
          }
        } catch (InterruptedException ex) {
          System.out.println(ex.getStackTrace());
        }
      }
    };
    
    //-----------------------------------------------
    // After r1 finished completely, r2 is executed.
    //-----------------------------------------------
    //r1.run();
    //r2.run();

    //-----------------------------------------------
    // Both r1 and r2 are executed by turns.
    //-----------------------------------------------
    //Thread thr1 = new Thread(r1);
    //Thread thr2 = new Thread(r2);
    //thr1.start();
    //thr2.start();
  }
}