import javax.swing.*; import java.awt.*; public class FondEvent implements ActionListener{ public JPanel panneau; public FondEvent(JButton[] boutons){ panneau = new JPanel(); for (JButton bouton : boutons){ panneau.add(bouton); } boutonContainer.setBackground(new Color(46,209,111)); } public void fenetre(){ JFrame fenetre = new JFrame(); fenetre.setSize(500, 300); fenetre.setLocation(0, 0); fenetre.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); fenetre.add(boutonContainer, BorderLayout.CENTER); fenetre.setVisible(true); } @Overrides void actionPerformed(ActionEvent evenement){ String couleur = this.getActionCommand(); boutonContainer.setBackground(couleur); } }