Handling Key Presses : Key Event « Event « Java

Handling Key Presses

import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;

import javax.swing.JFrame;
import javax.swing.JTextField;

public class Main {
  public static void main(String[] argv) throws Exception {
    JTextField component = new JTextField();
    component.addKeyListener(new MyKeyListener());

    JFrame f = new JFrame();

    f.setSize(300, 300);


class MyKeyListener extends KeyAdapter {
  public void keyPressed(KeyEvent evt) {
    if (evt.getKeyChar() == 'a') {
      System.out.println("Check for key characters: " + evt.getKeyChar());
    if (evt.getKeyCode() == KeyEvent.VK_HOME) {
      System.out.println("Check for key codes: " + evt.getKeyCode());


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2.KeyListener, ActionListener Demo 2KeyListener, ActionListener Demo 2
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5.Key Event DemoKey Event Demo
6.Set java.awt.Container.getFocusTraversalKeys(int id)
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9.InputMap javax.swing.JComponent.getInputMap(int condition)
10.Activating a Keystroke When Any Child Component Has Focus
11.Listening to All Key Events Before Delivery to Focused Component
12.List keystrokes in the WHEN_ANCESTOR_OF_FOCUSED_COMPONENT input map of the component
13.List keystrokes in the WHEN_IN_FOCUSED_WINDOW input map of the component
14.Converting a KeyStroke to a String
15.Creating a KeyStroke and Binding It to an Action
16.void InputMap.put(KeyStroke keyStroke, Object actionMapKey)
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19.Get key pressed as a key code
20.Get Key Text
21.KeyStroke to String
22.Construct a new key description from a given universal string descriptionConstruct a new key description from a given universal string description
23.Reads for modifiers and creates integer with required mask