49 lines
1.3 KiB
Java
49 lines
1.3 KiB
Java
import java.awt.*;
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import java.awt.event.*;
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import javax.swing.*;
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public class Fond implements ActionListener
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{
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public static JButton bouton1, bouton2, bouton3;
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private JPanel panneau;
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public Fond() {
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JFrame fenetre = new JFrame();
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fenetre.setSize(300, 300);
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fenetre.setLocation(100, 100);
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fenetre.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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panneau = new JPanel();
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bouton1 = new JButton("Cyan");
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bouton1.addActionListener(this);
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bouton2 = new JButton("Magenta");
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bouton2.addActionListener(this);
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bouton3 = new JButton("Jaune");
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bouton3.addActionListener(this);
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panneau.add(bouton1);
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panneau.add(bouton2);
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panneau.add(bouton3);
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fenetre.add(panneau);
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fenetre.setVisible(true);
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}
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public void actionPerformed(ActionEvent e)
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{
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Object source = e.getSource();
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if (source == bouton1)
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{
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panneau.setBackground(Color.CYAN);
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}
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else if (source == bouton2)
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{
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panneau.setBackground(Color.MAGENTA);
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}
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else if (source == bouton3)
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{
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panneau.setBackground(Color.YELLOW);
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}
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panneau.repaint();
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}
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public static void main(String[] args)
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{
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new Fond();
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}
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}
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