import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
/*public class Main extends JFrame {
JLabel la = new JLabel("러부 잡바");
Main(){
setSize(300,280);
setVisible(true);
Container c = getContentPane();
setLayout(new FlowLayout());
c.add(la);
la.addMouseListener(new MyMouseListner());
}
class MyMouseListner extends MouseAdapter {
public void mouseEntered(MouseEvent e) {
la.setText("JAVA");
}
public void mouseExited(MouseEvent e) {
la.setText("러부 잡바");
}
}
public static void main(String[] args) {
new Main();
}
}
public class Main extends JFrame {
JLabel la = new JLabel("Love Java");
Main(){
setSize(680,630);
setVisible(true);
Container c = getContentPane();
setLayout(new FlowLayout());
c.add(la);
la.addKeyListener(new hiKey());
la.setFocusable(true);
la.requestFocus();
}
class hiKey extends KeyAdapter {
public void keyPressed(KeyEvent e) {
System.out.println("OK");
int keyCode = e.getKeyCode();
if(keyCode == KeyEvent.VK_LEFT) {
if(la.getText().equals("avaJ evoL")) {
la.setText("Love Java");
}
else {
la.setText("avaJ evoL");
}
}
}
}
public static void main(String[] args) {
new Main();
}
}
public class Main extends JFrame {
JLabel la = new JLabel("C");
Main(){
setSize(600,600);
setVisible(true);
Container c = getContentPane();
setLayout(null);
c.add(la);
la.setLocation(100, 100);
la.setSize(60, 60);
la.addMouseListener(new hiMouse())
}
class hiMouse extends MouseAdapter {
public void mouseClicked(MouseEvent e) {
int x = (int)(Math.random()*500)+ 40;
int y = (int)(Math.random()*500)+ 40;
la.setLocation(x, y);
}
}
public static void main(String[] args) {
new Main();
}
}*/
public class Main extends JFrame {
JLabel la = new JLabel("hiJAVA");
Main(){
setSize(500,450);
setVisible(true);
Container c = getContentPane();
setLayout(new FlowLayout());
c.add(la);
la.addMouseWheelListener(new hiMouse());
}
class hiMouse implements MouseWheelListener {
public void mouseWheelMoved(MouseWheelEvent e) {
int n = e.getWheelRotation();
if(n < 0) {
System.out.println("UP");
}
else {
System.out.println("DN");
}
}
}
public static void main(String[] args) {
new Main();
}
}