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//: concurrency/AtomicityTest.java

import java.util.concurrent.*;

public class AtomicityTest implements Runnable {

private int i = 0;

public int getValue() { return i; }

private synchronized void evenIncrement() { i++; i++; }

public void run() {

while(true)

evenIncrement();

}

public static void main(String[] args) {

ExecutorService exec = Executors.newCachedThreadPool();

AtomicityTest at = new AtomicityTest();

exec.execute(at);

while(true) {

int val = at.getValue();

if(val % 2 != 0) {

System.out.println(val);

System.exit(0);

}

}

}

} /* Output: (Sample)

191583767

*///:~