Adding a new WindowListener to a JFrame
24,534
There is a default implementation of WindowListener
called WindowAdapter
which allows you to override the methods you really want to use
Comments
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Jonathan Beaudoin over 3 years
mainFrame.addWindowListener(new WindowListener() { @Override public void windowClosing(WindowEvent e) { if (JOptionPane.showConfirmDialog(mainFrame, "Are you sure you want to quit?", "Confirm exit.", JOptionPane.OK_OPTION, 0, new ImageIcon("")) != 0) { return; } System.exit(-1); } @Override public void windowOpened(WindowEvent e) {} @Override public void windowClosed(WindowEvent e) {} @Override public void windowIconified(WindowEvent e) {} @Override public void windowDeiconified(WindowEvent e) {} @Override public void windowActivated(WindowEvent e) {} @Override public void windowDeactivated(WindowEvent e) {} });
There is my code, is it possible since I only use the windowClosing method to remove all the other in my case, useless methods so it takes less space?
Example
mainFrame.addWindowListener(new WindowListener() { @Override public void windowClosing(WindowEvent e) { if (JOptionPane.showConfirmDialog(mainFrame, "Are you sure you want to quit?", "Confirm exit.", JOptionPane.OK_OPTION, 0, new ImageIcon("")) != 0) { return; } System.exit(-1); } });
Is it possible?