1. public class Threads4 {2.   public static void main (String[] args) {3.    new Threads4().go();4.   }5.   public void go() {6.    Runnable r = new Runnable() {7.     public void run() {8.      System.out.print("foo");9.     }10.    };11.    Thread t = new Thread(r);12.    t.start();13.    t.start();14.   }15. }