class PrintNameThread implements Runnable {
    Thread thread;
    PrintNameThread(String name) {
        thread = new Thread(this,name);
        thread.start();
    }
    public void run() {
    String name = thread.getName();
    for (int i = 0; i < 20; i++) {
    System.out.print(name);
}
}
}
class TestThreadJoin {
 public static void main(String args[]) {
     PrintNameThread pnt1 = new PrintNameThread("N");
     PrintNameThread pnt2 = new PrintNameThread("U");
     PrintNameThread pnt3 = new PrintNameThread("R");
     PrintNameThread pnt4 = new PrintNameThread("I");
     System.out.println("Running threads...");
     try {
         pnt1.thread.join();
         pnt2.thread.join();
         pnt3.thread.join();
         pnt4.thread.join();
     } catch (InterruptedException ie) {
 }
     System.out.println("Threads killed.");
 }
}

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