TP Exceptions

DEV2.1/TP10/04_Apparences/Fond.java

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+import java.awt.*;
+import javax.swing.*;
+import java.awt.event.ActionListener;
+import java.awt.event.ActionEvent;
+
+public class Fond {
+	public static void main(String[] args) {
+		try {
+			try {
+				UIManager.setLookAndFeel("javax.swing.plaf.nimbus.NimbusLookAndFeel");
+			} catch (ClassNotFoundException e) {
+			}
+		} catch (InstantiationException e2) {	
+		} catch (IllegalAccessException e3) {
+		} catch (UnsupportedLookAndFeelException e4) {
+		} // On constate que les boutons changent d'apparence 
+		catch (ClassCastException e5) {
+			System.out.println("Nom de manager incorrect");
+		} // Les boutons restent comme avant
+
+		JFrame fenetre = new JFrame();
+		fenetre.setSize(300,200);
+		fenetre.setLocation(100,100);
+		fenetre.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		fenetre.setLayout(new GridLayout(1, 1));
+
+		JPanel panneau = new JPanel();
+
+		JButton bouton1 = new JButton("Cyan");
+		JButton bouton2 = new JButton("Magenta");
+		JButton bouton3 = new JButton("Jaune");
+
+		bouton1.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent evenement) {
+				panneau.setBackground(Color.CYAN);
+			}
+		});
+
+		bouton2.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent evenement) {
+				panneau.setBackground(Color.MAGENTA);
+			}
+		});
+
+		bouton3.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent evenement) {
+				panneau.setBackground(Color.YELLOW);
+			}
+		});
+
+		panneau.add(bouton1);
+		panneau.add(bouton2);
+		panneau.add(bouton3);
+
+		fenetre.add(panneau);
+		fenetre.setVisible(true);
+	}
+}