Java tutorial
import java.awt.Container; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.InputEvent; import java.awt.event.KeyEvent; import javax.swing.AbstractAction; import javax.swing.Action; import javax.swing.ActionMap; import javax.swing.InputMap; import javax.swing.JButton; import javax.swing.JComponent; import javax.swing.JFrame; import javax.swing.KeyStroke; public class KeyStrokeSample { private static final String ACTION_KEY = "theAction"; public static void main(String args[]) { JFrame frame = new JFrame("KeyStroke Sample"); JButton buttonA = new JButton("<html><center>FOCUSED<br>control alt 7"); JButton buttonB = new JButton("<html><center>FOCUS/RELEASE<br>VK_ENTER"); JButton buttonC = new JButton("<html><center>ANCESTOR<br>VK_F4+SHIFT_MASK"); JButton buttonD = new JButton("<html><center>WINDOW<br>' '"); // Define ActionListener Action actionListener = new AbstractAction() { public void actionPerformed(ActionEvent actionEvent) { JButton source = (JButton) actionEvent.getSource(); System.out.println("Activated: " + source.getText()); } }; KeyStroke controlAlt7 = KeyStroke.getKeyStroke("control alt 7"); InputMap inputMap = buttonA.getInputMap(); inputMap.put(controlAlt7, ACTION_KEY); ActionMap actionMap = buttonA.getActionMap(); actionMap.put(ACTION_KEY, actionListener); KeyStroke enter = KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0, true); inputMap = buttonB.getInputMap(); inputMap.put(enter, ACTION_KEY); buttonB.setActionMap(actionMap); KeyStroke shiftF4 = KeyStroke.getKeyStroke(KeyEvent.VK_F4, InputEvent.SHIFT_MASK); inputMap = buttonC.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT); inputMap.put(shiftF4, ACTION_KEY); buttonC.setActionMap(actionMap); KeyStroke space = KeyStroke.getKeyStroke(' '); inputMap = buttonD.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW); inputMap.put(space, ACTION_KEY); buttonD.setActionMap(actionMap); Container contentPane = frame.getContentPane(); contentPane.setLayout(new GridLayout(2, 2)); contentPane.add(buttonA); contentPane.add(buttonB); contentPane.add(buttonC); contentPane.add(buttonD); frame.setSize(400, 200); frame.setVisible(true); } }