public class GrisGrop4 {

   public static void main(String[] args) {
      // Create two instances of StringPrinter.
      Runnable grisGrop = new StringPrinter("GrisGrop", 95);
      Runnable blorp = new StringPrinter("Blorp", 111);

      // Create two threads, each having an instance
      // of StringPrinter as its "resident Runnable".
      Thread grisGropThread = new Thread(grisGrop);
      Thread blorpThread = new Thread(blorp);

      // Start both threads
      grisGropThread.start();
      blorpThread.start();

      // Wait for both threads to finish.
      join(grisGropThread);
      join(blorpThread);

      // Print a goodbye message.
      System.out.println("Goodbye.");
   }

   /* Applies join() to the given thread, catching
   ** InterruptedException if it is thrown.
   */
   private static void join(Thread t) {
      try {
         t.join();
      }
      catch (InterruptedException e) {
         e.printStackTrace(System.out);
      }
   }
}