/*
 * Copyright (C) 2014, United States Government, as represented by the
 * Administrator of the National Aeronautics and Space Administration.
 * All rights reserved.
 *
 * The Java Pathfinder core (jpf-core) platform is licensed under the
 * Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 * 
 *        http://www.apache.org/licenses/LICENSE-2.0. 
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and 
 * limitations under the License.
 */

public class Racer implements Runnable {

     int d = 42;

     @Override
	public void run () {
          doSomething(1001);                   // (1)
          d = 0;                               // (2)
     }

     public static void main (String[] args){
          Racer racer = new Racer();
          Thread t = new Thread(racer);
          t.start();

          doSomething(1000);                   // (3)
          int c = 420 / racer.d;               // (4)
          System.out.println(c);
     }
     
     static void doSomething (int n) {
          // not very interesting..
          try { Thread.sleep(n); } catch (InterruptedException ix) {}
     }
}