JFrame Conditional Close

[hemanthjava]

I want the JFrame to be closed conditionally, based on a yes, no or cancel dialog.

I am not able to control it for "Cancel" and "No" button.s. Every time the JFrame Closes.

Code:

import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JFrame;
import javax.swing.JOptionPane;

// Displaying a JFrame at the center of the screen using Java Toolkit Class
public class jFrameDemo extends JFrame {

	jFrameDemo() {
		setTitle("Center a Frame on Screen"); // jframe title
		setSize(400, 300); // jframe size
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		addWindowListener(new WindowAdapter() {

			// java jframe close
			public void windowClosing(WindowEvent e) {
				if (JOptionPane.showConfirmDialog(null, "Are you sure ?") == JOptionPane.YES_NO_OPTION) {
					setVisible(false);
					dispose(); // jframe exit
				} else {
				}
			}
		});
	}

	public static void main(String[] args) {
		jFrameDemo cfd = new jFrameDemo();
		cfd.setVisible(true);
	}

}

[Eranga]

You have to use YES_OPTION only. Got it?

[hardwired]

Code:

import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JFrame;
import javax.swing.JOptionPane;

public class FrameDemoRx extends JFrame {
    FrameDemoRx() {
        setSize(200, 200);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                int n = 99;
                do {
                    n = JOptionPane.showConfirmDialog(null,
                                                "Are you sure ?");
                    String s = "unknown";
                    if(n == JOptionPane.YES_OPTION)
                        s = "YES_OPTION = " + JOptionPane.YES_OPTION;
                    if(n == JOptionPane.NO_OPTION)
                        s = "NO_OPTION = " + JOptionPane.NO_OPTION;
                    if(n == JOptionPane.CANCEL_OPTION)
                        s = "CANCEL_OPTION = " + JOptionPane.CANCEL_OPTION;
                    if(n == JOptionPane.CLOSED_OPTION)
                        s = "CLOSED_OPTION = " + JOptionPane.CLOSED_OPTION;
                    System.out.println("s = " + s);
                } while(n != -1);
            }
        });
        setLocationRelativeTo(null);
        setVisible(true);
    }

    public static void main(String[] args) {
        new FrameDemoRx();
    }
}

[hemanthjava]

I changed to the YES_OPTION only. But I still experience the same probelm

[Eranga]

Oops, you have another mistake too. You have set the default close operation to exit. So what happened is, what ever the option you selected at the time frame has a process to complete. So change the default close operation to DO_NOTHING_ON_CLOSE. It should work.

[hemanthjava]

Quote:

Originally Posted by hardwired

Code:

import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JFrame;
import javax.swing.JOptionPane;

public class FrameDemoRx extends JFrame {
    FrameDemoRx() {
        setSize(200, 200);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                int n = 99;
                do {
                    n = JOptionPane.showConfirmDialog(null,
                                                "Are you sure ?");
                    String s = "unknown";
                    if(n == JOptionPane.YES_OPTION)
                        s = "YES_OPTION = " + JOptionPane.YES_OPTION;
                    if(n == JOptionPane.NO_OPTION)
                        s = "NO_OPTION = " + JOptionPane.NO_OPTION;
                    if(n == JOptionPane.CANCEL_OPTION)
                        s = "CANCEL_OPTION = " + JOptionPane.CANCEL_OPTION;
                    if(n == JOptionPane.CLOSED_OPTION)
                        s = "CLOSED_OPTION = " + JOptionPane.CLOSED_OPTION;
                    System.out.println("s = " + s);
                } while(n != -1);
            }
        });
        setLocationRelativeTo(null);
        setVisible(true);
    }

    public static void main(String[] args) {
        new FrameDemoRx();
    }
}

This snippet does not solve the purpose of Closing the JFrame conditionally. Can you please help in this regard ?

[Eranga]

You have done the same error too here.

Code:

setDefaultCloseOperation(EXIT_ON_CLOSE);

[hemanthjava]

Quote:

Originally Posted by Eranga

Oops, you have another mistake too. You have set the default close operation to exit. So what happened is, what ever the option you selected at the time frame has a process to complete. So change the default close operation to DO_NOTHING_ON_CLOSE. It should work.

Quote:

Originally Posted by Eranga

You have done the same error too here.

Code:

setDefaultCloseOperation(EXIT_ON_CLOSE);

Thank you so much. It worked for me. :-)

[Eranga]

Nice to hear that.

[Fubarable]

cross-posted. thanks for wasting my time.

[Eranga]

Don't worry Fubarable. Some people doesn't believe what we says at once.

Anyway, you are on the suns' forum too, isn't it?