Java Swing How to - Add key listener to Editable JcomboBox TextField

Question

We would like to know how to add key listener to Editable JcomboBox TextField.

Answer

import java.awt.FlowLayout;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
//w ww.j  a v  a2  s  .  c om
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JTextField;

public class Main extends JFrame implements KeyListener {
  JComboBox<String> combobox = new JComboBox(new String[]{"a","b","c"});
  public static void main(String[] args) {
    new Main();
  }

  private Main() {
    combobox.setEditable(true);
    JTextField editor = (JTextField) combobox.getEditor().getEditorComponent();
    editor.addKeyListener(this);
    setLayout(new FlowLayout());
    add(combobox);
    pack();
    setVisible(true);
  }

  public void keyTyped(KeyEvent arg0) {
    System.out.println("Key Typed " + arg0.getKeyCode());
  }

  public void keyPressed(KeyEvent arg0) {
    System.out.println("Key Pressed " + arg0.getKeyCode());
  }

  public void keyReleased(KeyEvent arg0) {
    System.out.println("Key Released " + arg0.getKeyCode());
  }
}