20 lines
568 B
Java
20 lines
568 B
Java
|
//: concurrency/SynchronizedEvenGenerator.java
|
|||
|
|
// <20>2015 MindView LLC: see Copyright.txt
|
|||
|
|
// Simplifying mutexes with the synchronized keyword.
|
|||
|
|
// {TimeOutDuringTesting}
|
|||
|
|
|
|||
|
|
public class
|
|||
|
|
SynchronizedEvenGenerator extends IntGenerator {
|
|||
|
|
private int currentEvenValue = 0;
|
|||
|
|
@Override
|
|||
|
|
public synchronized int next() {
|
|||
|
|
++currentEvenValue;
|
|||
|
|
Thread.yield(); // Cause failure faster
|
|||
|
|
++currentEvenValue;
|
|||
|
|
return currentEvenValue;
|
|||
|
|
}
|
|||
|
|
public static void main(String[] args) {
|
|||
|
|
EvenChecker.test(new SynchronizedEvenGenerator());
|
|||
|
|
}
|
|||
|
|
} /* Output: (None) *///:~
|