Java tutorial
import java.awt.event.ActionEvent; import javax.swing.AbstractAction; import javax.swing.Action; import javax.swing.InputMap; import javax.swing.JComponent; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.KeyStroke; public class MainClass { public static void main(final String args[]) { final JFrame frame = new JFrame("Frame Key"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); Action actionListener = new AbstractAction() { public void actionPerformed(ActionEvent actionEvent) { System.out.println("Got an M"); } }; JPanel content = (JPanel) frame.getContentPane(); KeyStroke stroke = KeyStroke.getKeyStroke("M"); InputMap inputMap = content.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW); inputMap.put(stroke, "OPEN"); content.getActionMap().put("OPEN", actionListener); frame.setSize(300, 300); frame.setVisible(true); } }