53 lines
1.6 KiB
Java
53 lines
1.6 KiB
Java
import javax.swing.*;
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import java.awt.*;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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public class Fond implements ActionListener {
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static JPanel panneau;
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static ActionListener unObservateur1 = new ActionListener() {
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@Override
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public void actionPerformed(ActionEvent evenement) {
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panneau.setBackground(new Color(0, 255, 255)); // Rouge
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}
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};
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static ActionListener unObservateur2 = new ActionListener() {
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@Override
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public void actionPerformed(ActionEvent evenement) {
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panneau.setBackground(new Color(255, 0, 255)); // Vert
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}
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};
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static ActionListener unObservateur3 = new ActionListener() {
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@Override
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public void actionPerformed(ActionEvent evenement) {
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panneau.setBackground(new Color(255, 255, 0)); // Bleu
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}
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};
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public static void main(String[] args) {
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JFrame fenetre = new JFrame("Fond");
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fenetre.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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fenetre.setSize(500, 500);
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panneau = new JPanel();
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JButton cyan = new JButton("Cyan");
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JButton magenta = new JButton("Magenta");
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JButton jaune = new JButton("Jaune");
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panneau.add(cyan);
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cyan.addActionListener(unObservateur1);
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panneau.add(magenta);
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magenta.addActionListener(unObservateur2);
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panneau.add(jaune);
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jaune.addActionListener(unObservateur3);
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fenetre.add(panneau);
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fenetre.setVisible(true);
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}
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@Override
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public void actionPerformed(ActionEvent e) {
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}
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}
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