import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Main extends JFrame{
JLabel l = new JLabel("자바");
public Main() {
setTitle("마우스를 올리기 내리.................");
Container c = getContentPane();
c.setLayout(new FlowLayout());
l.addMouseListener(new MyMouseListener());
c.add(l);
setSize(1000,1000);
setVisible(true);
}
class MyMouseListener extends MouseAdapter
{
public void mouseEntered(MouseEvent e) {
l.setText("나락");
}
public void mouseExited(MouseEvent e) {
l.setText("극락");
}
}
public static void main(String[] args) {
new Main();
}
}
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Main extends JFrame{
Container c = getContentPane();
public Main() {
setSize(1000,1000);
setVisible(true);
c.setBackground(Color.gray);
c.addMouseMotionListener(new MyMouseMotionListener() );
}
class MyMouseMotionListener implements MouseMotionListener{
public void mouseDragged(MouseEvent e) {
c.setBackground(Color.YELLOW);
}
@Override
public void mouseMoved(MouseEvent e) {
c.setBackground(Color.green);
}
}
public static void main(String[] args) {
new Main();
}
}
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Main extends JFrame{
JLabel l = new JLabel("자바");
public Main() {
Container c = getContentPane();
setSize(1000,1000);
setVisible(true);
c.addKeyListener(new MyKeyListener());
c.add(l);
c.setLayout(new FlowLayout());
c.setFocusable(true);
c.requestFocus();
}
class MyKeyListener extends KeyAdapter{
public void keyPressed(KeyEvent e) {
if(e.getKeyCode() == KeyEvent.VK_LEFT) {
l.setText("wkqk");
}
}
public void keyReleased(KeyEvent e) {
if(e.getKeyCode() == KeyEvent.VK_LEFT) {
l.setText("자바");
}
}
}
public static void main(String[] args) {
new Main();
}
}
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Main extends JFrame {
JLabel l = new JLabel("zz");
public Main() {
Container c = getContentPane();
setSize(1000, 1000);
setVisible(true);
c.addKeyListener(new MyKeyListener());
c.setLayout(new FlowLayout());
c.add(l);
c.setFocusable(true);
c.requestFocus();
}
class MyKeyListener extends KeyAdapter {
public void keyPressed(KeyEvent e) {
int size = l.getFont().getSize();
if(e.getKeyCode() == 107) {
l.setFont( new Font("Arial", Font.PLAIN, size+5) );
}
else if(e.getKeyCode() == 109) {
if(size-5>5) l.setFont(new Font("Arial", Font.PLAIN, size-5));
}
}
}
public static void main(String[] args) {
new Main();
}
}
int random_number = (int)(Math.random()*100); // 0이상 100미만의 랜덤 정수 만들기 꼭 기억하기!!!******잊어버리면 혼남!!!!!!!꼭꼮꼬꼬꼮끼억하기
*
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Main extends JFrame{
JLabel l = new JLabel("cl");
public Main() {
setSize(300,300);
setVisible(true);
Container c = getContentPane();
l.addMouseListener(new MyMouseListener());
c.setLayout(null);
c.add(l);
l.setLocation(100,100);
l.setSize(10, 10);
}
class MyMouseListener extends MouseAdapter{
public void mouseClicked(MouseEvent e) {
System.out.println("ccc");
l.setLocation((int)(Math.random()*300),(int)(Math.random()*300));
}
}
public static void main(String[] args) {
new Main();
}
}
*/