Button for closing a JDialog

Question

I want to add a button (JButton) at the bottom of a JDialog which should close the JDialog when pressed. The problem is I don\'t know what to write in the ActionListener of

Answer 1

In the actionPerformed() method of ActionListener you'll want something like:

dialog.setVisible(false);

If you want to get rid of the dialog permanently (free it from memory) then you would also call:

dialog.dispose(); 

...where dialog is the name of your dialog. If dialog is a local variable, you'll need to make it final to access it in this way (or just make sure it's "effectively final" from Java 8 onwards).

If you're adding the button as part of a subclass of JDialog (i.e. if you've got class MyDialog extends JDialog and you're adding the action listener in MyDialog) you'll want:

MyDialog.this.setVisible(false);