import java.util.Observer;
import java.util.Observable;
public class ObservedSubject extends Observable {
private int value = 0;
public void receiveValue( int newNumber ) {
if (Math.random() < .5) {
System.out.println( "Subject : I like it, I’ve changed my "
+ "internal value." );
value = newNumber;
this.setChanged();
} else
System.out.println( "Subject : I have a number "+ value +
" now, and I not interested in the number "
+ newNumber + "." );
this.notifyObservers();
}
public int returnValue() {
return value;
}
}