Swing: how do I close a dialog when the ESC key is pressed?

Question

GUI development with Swing.

I have a custom dialog for choosing a file to be opened in my application; its class extends javax.swing.JDialog and contain

Answer 1

I had problems implementing both of the top answers. Here's a rather compact version using AbstractAction to auto-implement most of Action's methods, which works within text-based fields (per @pratikabu's request):

final AbstractAction escapeAction = new AbstractAction() {
    private static final long serialVersionUID = 1L;

    @Override
    public void actionPerformed(ActionEvent ae) {
        dispose();
    }
};

getRootPane().getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW)
        .put(KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0), "ESCAPE_KEY");
getRootPane().getActionMap().put("ESCAPE_KEY", escapeAction);

References

• the above answers
• http://www.coderanch.com/t/335357/GUI/java/KeyPressed-JDialog