import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class colorTransformation extends JFrame {
public colorTransformation(){
this.setSize(500,500);
this.setLocation(100,100);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLocationRelativeTo(null);
this.setTitle("背景颜色变换");
this.setResizable(false);
this.setIconImage(new ImageIcon("zhaopian").getImage());
JPanel jp = new JPanel();
JButton jb = new JButton("红色");
JButton jb1 = new JButton("绿色");
JButton jb2 = new JButton("蓝色");
JButton jb3 = new JButton("复原");
jp.add(jb);
jp.add(jb1);
jp.add(jb2);
jp.add(jb3);
this.add(jp);
this.setVisible(true);
jb.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
jp.setBackground(Color.RED);
}
});
jb1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
jp.setBackground(Color.GREEN);
}
});
jb2.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
jp.setBackground(Color.BLUE);
}
});
jb3.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
jp.setBackground(null);
}
});
}
public static void main(String[] args) {
new colorTransformation();
}
}
如下效果