이렇게 해도 되는 건지 원... -_-;; {{{~cpp // ButtonTest.java import java.awt.*; import java.awt.event.*; import javax.swing.*; class ButtonPanel extends JPanel implements ActionListener { public ButtonPanel() { yellowButton = new JButton("Yellow"); blueButton = new JButton("Blue"); redButton = new JButton("Red"); add(yellowButton); add(blueButton); add(redButton); yellowButton.addActionListener(this); blueButton.addActionListener(this); redButton.addActionListener(this); } public void actionPerformed(ActionEvent evt) { Object source = evt.getSource(); Color color = getBackground(); if(source == yellowButton) color = Color.yellow; else if(source == blueButton) color = Color.blue; else if(source == redButton) color = Color.red; setBackground(color); repaint(); } private JButton yellowButton; private JButton blueButton; private JButton redButton; } class ButtonFrame extends JFrame { public ButtonFrame() { setTitle("ButtonTest"); setSize(300, 200); addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } } ); Container contentPane = getContentPane(); contentPane.add(new ButtonPanel()); } } public class ButtonTest { public static void main(String[] args) { JFrame frame = new ButtonFrame(); frame.show(); } } }}} From. 申 君... ---- ["JavaStudyInVacation/진행상황"]