24일 차 KeyEvent

import java.awt.event.KeyListener;

import javax.swing.JFrame;

import javax.swing.JTextField;

class WFrame extends JFrame implements KeyListener {

public WFrame() {

this.setTitle("키 이벤트");

this.setSize(300, 200);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JTextField field = new JTextField(20);

field.addKeyListener(this);

this.add(field);

this.setVisible(true);

}

@Override

public void keyPressed(java.awt.event.KeyEvent e) {

// TODO Auto-generated method stub

display(e, "keyPressed");

}

@Override

public void keyReleased(java.awt.event.KeyEvent e) {

// TODO Auto-generated method stub

display(e, "keyReleased");

}

@Override

public void keyTyped(java.awt.event.KeyEvent e) {

// TODO Auto-generated method stub

display(e, "keyTyped");

}

public void display(java.awt.event.KeyEvent e, String s) {

char c = e.getKeyChar();

int keyCode = e.getKeyCode();

String modifiers = e.isAltDown() + " " + e.isControlDown() + " " + e.isShiftDown();

System.out.println(s + " " + c + " " + keyCode + " " + modifiers);

}

}

public class KeyEvent {

public static void main(String[] args) {

// TODO Auto-generated method stub

new WFrame();

}

}