Ajout TP09 / TP10

APL2.1/TP10/Fond/Fond.java

@@ -0,0 +1,50 @@
+import java.awt.*;
+import javax.swing.*;
+import java.awt.event.*;
+
+class Observer implements ActionListener {
+    public Observer() {
+
+    }
+
+    public void actionPerformed(ActionEvent evt) {
+        String name = evt.getActionCommand();
+        JPanel f = (JPanel)((JButton)evt.getSource()).getParent();
+
+
+        if (name == "Jaune") {
+            f.setBackground(Color.YELLOW);
+        } else if (name == "Cyan") {
+            f.setBackground(Color.CYAN);
+        } else if (name == "Magenta") {
+            f.setBackground(Color.MAGENTA);
+        }
+    }
+}
+
+public class Fond {
+
+    public static void main(String[] args) {
+        JFrame f = new JFrame("Fond");
+        f.setSize(200, 200);
+        f.setLocation(100, 100);
+        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        f.setLayout(new GridLayout(1, 3));
+
+        JButton b1 = new JButton("Jaune");
+        JButton b2 = new JButton("Cyan");
+        JButton b3 = new JButton("Magenta");
+
+        Observer observer = new Observer();
+
+        b1.addActionListener(observer);
+        b2.addActionListener(observer);
+        b3.addActionListener(observer);
+
+        f.add(b1);
+        f.add(b2);
+        f.add(b3);
+
+        f.setVisible(true);
+    }
+}