JavaFX/src/bind/j.java at master · rtirl/JavaFX · GitHub

39 lines (29 loc) · 1009 Bytes

package bind;

import javafx.beans.*;

import javafx.beans.binding.*;

public class j {

public static void main(String[] args) {

bill bill1 = new bill();

bill bill2 = new bill();

bill bill3 = new bill();

NumberBinding total =

Bindings.add(bill1.amountDueProperty().add(bill2.amountDueProperty()),

bill3.amountDueProperty());

total.addListener(new InvalidationListener() {

@Override public void invalidated(Observable o) {

System.out.println("The binding is now invalid.");

}

});

// First call makes the binding invalid

bill1.setAmountDue(200.00);

// The binding is now invalid

bill2.setAmountDue(100.00);

bill3.setAmountDue(75.00);

// Make the binding valid...

System.out.println(total.getValue());

// Make invalid...

bill3.setAmountDue(150.00);

// Make valid...

System.out.println(total.getValue());

}

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