/*
    GUI03.java
    CIS 160
    David Klick
    2011-09-24

    Letting program run until last window closed
*/

import javax.swing.JFrame;
import javax.swing.SwingUtilities;

public class GUI03 {
    static int windows = 0;

    public GUI03() {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }
    
    private void createAndShowGUI() {
        windows++;
        JFrame fra = new JFrame("Window #" + windows);
        fra.setSize(300, 200);
        fra.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        fra.setVisible(true);
    }

    public void finalize() {
       windows--;
       if (windows == 0) System.exit(0);
    }

    public static void main(String[] args) {
        GUI03 app1 = new GUI03();
        GUI03 app2 = new GUI03();
        GUI03 app3 = new GUI03();
    }
}