import java.awt.BorderLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JTextField; import javax.swing.KeyStroke; import javax.swing.text.Keymap; public class DefaultSample { public static void main(String args[]) { JFrame frame = new JFrame("Default Example"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JTextField textField = new JTextField(); frame.add(textField, BorderLayout.NORTH); ActionListener actionListener = new ActionListener() { public void actionPerformed(ActionEvent actionEvent) { System.out.println(actionEvent.getActionCommand() + " selected"); } }; JPanel panel = new JPanel(); JButton defaultButton = new JButton("Default Button"); defaultButton.addActionListener(actionListener); panel.add(defaultButton); JButton otherButton = new JButton("Other Button"); otherButton.addActionListener(actionListener); panel.add(otherButton); frame.add(panel, BorderLayout.SOUTH); Keymap keymap = textField.getKeymap(); KeyStroke keystroke = KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0, false); keymap.removeKeyStrokeBinding(keystroke); frame.getRootPane().setDefaultButton(defaultButton); frame.setSize(250, 150); frame.setVisible(true); } }