package application.chapter2;
import javafx.beans.binding.NumberBinding;
import javafx.beans.property.IntegerProperty;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.value.ObservableValue;
public class BindingTest3 {
public static void main(String[] args) {
IntegerProperty x = new SimpleIntegerProperty(100);
IntegerProperty y = new SimpleIntegerProperty(200);
// Create a binding: sum = x + y
NumberBinding sum = x.add(y);
System.out.println("After creating sum");
System.out.println("sum.isValid(): " + sum.isValid());
// Let us get the value of sum, so it computes its value and
// becomes valid
int value = sum.intValue();
System.out.println("\nAfter requesting value");
System.out.println("sum.isValid(): " + sum.isValid());
System.out.println("sum = " + value);
// Change the value of x
x.set(250);
System.out.println("\nAfter changing x");
System.out.println("sum.isValid(): " + sum.isValid());
// Get the value of sum again
value = sum.intValue();
System.out.println("\nAfter requesting value");
System.out.println("sum.isValid(): " + sum.isValid());
System.out.println("sum = " + value);
}
}