package net.jcip.examples; /** * PossibleReordering *
* Insufficiently synchronized program that can have surprising results * * @author Brian Goetz and Tim Peierls */ public class PossibleReordering { static int x = 0, y = 0; static int a = 0, b = 0; public static void main(String[] args) throws InterruptedException { Thread one = new Thread(new Runnable() { public void run() { a = 1; x = b; } }); Thread other = new Thread(new Runnable() { public void run() { b = 1; y = a; } }); one.start(); other.start(); one.join(); other.join(); System.out.println("( " + x + "," + y + ")"); } }