imported>Unknown at 05:22, 7 February 2021

2021-02-07T05:22:40Z

New page

이렇게 해도 되는 건지 원... -_-;;

// 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...

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[[JavaStudyInVacation/진행상황]]

Button/진영 - Revision history

imported>Unknown at 05:22, 7 February 2021