public class NoVisibilityAlt {
  private static boolean ready;
  private static int number;
	
  private static class ReaderThread   
    extends Thread {
    public void run () {
      while (!ready)
        Thread.yield ();
      System.out.println (number);
    }
  }
    public static void main(String args[]) {
	new ReaderThread ().start ();
	number = 42;
	ready = true;
    }
}