try {
  System.out.println(Are
 you " + args[0] +'?');     
 
 rumpelstiltskin.guessName(args[0]); 
 
 System.out.println("Yes! How did you guess?");
  System.exit(0); // leave
 program gracefully
 }
 // come here right away if
 there is no args[0] 
 catch
 (IndexOutOfBoundsException e) {
    System.out.println( 
   "usage: java RumpelStiltskin
 guess");
 System.exit(0); // leave
 program gracefully
 }