19 lines
453 B
Java
19 lines
453 B
Java
|
//: concurrency/EvenGenerator.java
|
||
|
// When threads collide.
|
||
|
|
||
|
public class EvenGenerator extends IntGenerator {
|
||
|
private int currentEvenValue = 0;
|
||
|
public int next() {
|
||
|
++currentEvenValue; // Danger point here!
|
||
|
++currentEvenValue;
|
||
|
return currentEvenValue;
|
||
|
}
|
||
|
public static void main(String[] args) {
|
||
|
EvenChecker.test(new EvenGenerator());
|
||
|
}
|
||
|
} /* Output: (Sample)
|
||
|
Press Control-C to exit
|
||
|
89476993 not even!
|
||
|
89476993 not even!
|
||
|
*///:~
|