在JOptionPane.showMessageDialog上如何关闭？

Question

I have a JOptionPane set when a certain action happens, and I want it to be showMessageDialog because that just displays a message. How do I make it so when you click OK or cancel, it closes the entire application?

This is what I put

JOptionPane.showMessageDialog(null, "you lose");
if (JOptionPane.OK_OPTION){
        System.exit(0);
}

but it doesnt work. I based it off of this code I found online:

int exit = JOptionPane.showConfirmDialog(mainFrame, "Are you sure?");

if (exit == JOptionPane.YES_OPTION)
{
    try
    {
        Runtime.getRuntime().exec("cmd.exe /c start www.yahoo.com");
    }
    catch (Exception exception)
    {
    }
    System.exit(0);
}
else {
}

But that is for a Confirm dialog and I just want it to work for Message dialog.

I tried changing JOptionFrame.showConfirmDialog to JOptionFrame.showMessageDialog but it doesnt work, as int and other stuff had to be deleted.

Thanks

Answer 1

You can use ConfirmaDialog and use the INFORMATION_MESSAGE type.

int exit = JOptionPane.showConfirmDialog(null, "Are you sure?" , null, JOptionPane.OK_CANCEL_OPTION, JOptionPane.INFORMATION_MESSAGE);
if (exit == JOptionPane.YES_OPTION)
{
    //Do smt
}

If you will close the app any way, just do this:

JOptionPane.showMessageDialog(null, "you lose");
System.exit(0);

Why need to bother if in any cases, you will close the app?

Answer 2

Try this:

int choice = JOptionPane.showConfirmDialog(null, "you lose", "title", JOptionPane.OK_CANCEL_OPTION);
if (choice == JOptionPane.OK_OPTION || choice == JOptionPane.CANCEL_OPTION){
   System.exit(0);
}

Thanks.