How to close window (Java Swing) after run?

Question

I have standard Swing GUI class:

public class ElevatorGUI extends JFrame implements Observer {
private JButton button2;
private JTextArea textArea2;
private JSeparator separator2;
private JLabel label4;
private JLabel label5;
private JLabel label6;

with init

Container contentPane = getContentPane();
GroupLayout contentPaneLayout = new GroupLayout(contentPane);
    contentPane.setLayout(contentPaneLayout);
    contentPaneLayout.setHorizontalGroup(
        contentPaneLayout.createParallelGroup()
            .addGroup(contentPaneLayout.createSequentialGroup()

... etc. So we can to close this GUI by standard way:

setDefaultCloseOperation(EXIT_ON_CLOSE);

but how to do the same thing from method? For example:

public void update() {
Thread.currentThread().interrupt();
}

score 4 · Accepted Answer · edited May 23 '17 at 11:58

4

Taken from How to programmatically close a JFrame:

frame.dispatchEvent(new WindowEvent(frame, WindowEvent.WINDOW_CLOSING));

When the class extends JFrame, do this instead:

this.dispatchEvent(new WindowEvent(this, WindowEvent.WINDOW_CLOSING));

When this is executed the JFrame will be closed exactly as if the user pressed the "x" button.

edited May 23 '17 at 11:58

Community

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answered Jul 05 '15 at 00:04

MCMastery

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but I haven't any frame in my class/ I tryed : this.dispatchEvent(new WindowEvent(frame, WindowEvent.WINDOW_CLOSING)); But nothing exit( – Spacemaster Jul 05 '15 at 00:12
@Spacemaster see edit, when the class extends `JFrame` – MCMastery Jul 05 '15 at 00:13
(1+) `but I haven't any frame in my class` - sure you do. Your class extends JFrame. Understand the concept of the answer, and modify as required. – camickr Jul 05 '15 at 00:14
) I know that it extends JFrame. But how to apply your trick to my class?) – Spacemaster Jul 05 '15 at 00:17
this.dispatchEvent(new WindowEvent(this, WindowEvent.WINDOW_CLOSING)); I did it. But nothing happened – Spacemaster Jul 05 '15 at 00:18
Maybe it happens necause my window visibility is false? – Spacemaster Jul 05 '15 at 00:28
Its ok. Simply my 2nd class isnt started .. I saw it in debugger. Thx. – Spacemaster Jul 05 '15 at 00:34

How to close window (Java Swing) after run?

1 Answers1