diff --git a/APL2.1/TP10/Combinaison/Combinaison.class b/APL2.1/TP10/Combinaison/Combinaison.class
new file mode 100644
index 0000000..0f302c6
Binary files /dev/null and b/APL2.1/TP10/Combinaison/Combinaison.class differ
diff --git a/APL2.1/TP10/Combinaison/Combinaison.java b/APL2.1/TP10/Combinaison/Combinaison.java
index 05905b9..27ebffa 100644
--- a/APL2.1/TP10/Combinaison/Combinaison.java
+++ b/APL2.1/TP10/Combinaison/Combinaison.java
@@ -3,22 +3,36 @@ import javax.swing.*;
 import java.awt.event.*;
 
 class Observer implements ActionListener {
-    public Observer() {
+    boolean shouldY, shouldC, shouldM;
 
+    public Observer() {
+        shouldY = false;
+        shouldC = false;
+        shouldM = false;
+    }
+
+    private void updateColor(JPanel panel) {
+        int r, g, b;
+
+        r = shouldC ? 0 : 255;
+        g = shouldM ? 0 : 255;
+        b = shouldY ? 0 : 255;
+
+        panel.setBackground(new Color(r, g ,b));
     }
 
     public void actionPerformed(ActionEvent evt) {
         String name = evt.getActionCommand();
-        JRadioButton rb = (JRadioButton)evt.getSource();
-        JPanel f = (JPanel)rb.getParent();
+        JRadioButton radioButton = (JRadioButton)evt.getSource();
+        JPanel panel = (JPanel)radioButton.getParent();
 
-        if (name == "Jaune") {
-            f.setBackground(Color.YELLOW);
-        } else if (name == "Cyan") {
-            f.setBackground(Color.CYAN);
-        } else if (name == "Magenta") {
-            f.setBackground(Color.MAGENTA);
-        }
+        boolean selected = radioButton.isSelected();
+        
+        if (name == "Jaune") shouldY = selected;
+        else if (name == "Magenta") shouldM = selected;
+        else if (name == "Cyan") shouldC = selected;
+
+        updateColor(panel);
     }
 }
 
@@ -30,12 +44,11 @@ public class Combinaison {
         f.setLocation(100, 100);
         f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 
+        Observer observer = new Observer();
         JRadioButton b1 = new JRadioButton("Jaune");
         JRadioButton b2 = new JRadioButton("Cyan");
         JRadioButton b3 = new JRadioButton("Magenta");
 
-        Observer observer = new Observer();
-
         b1.addActionListener(observer);
         b2.addActionListener(observer);
         b3.addActionListener(observer);
diff --git a/APL2.1/TP10/Combinaison/Observer.class b/APL2.1/TP10/Combinaison/Observer.class
index de48404..c91dec5 100644
Binary files a/APL2.1/TP10/Combinaison/Observer.class and b/APL2.1/TP10/Combinaison/Observer.class differ
diff --git a/APL2.1/TP10/Commande/Commande.class b/APL2.1/TP10/Commande/Commande.class
new file mode 100644
index 0000000..66cd30d
Binary files /dev/null and b/APL2.1/TP10/Commande/Commande.class differ
diff --git a/APL2.1/TP10/Commande/Commande.java b/APL2.1/TP10/Commande/Commande.java
new file mode 100644
index 0000000..d7aadb2
--- /dev/null
+++ b/APL2.1/TP10/Commande/Commande.java
@@ -0,0 +1,45 @@
+import java.awt.*;
+import javax.swing.*;
+import java.awt.event.*;
+
+class Observer implements ActionListener {
+    public Observer() {}
+
+    public void actionPerformed(ActionEvent evt) {
+        String input = evt.getActionCommand().toLowerCase().trim();
+        JTextField textField = (JTextField)evt.getSource();
+        JPanel panel = (JPanel)textField.getParent();
+
+        if (input.equals("cyan")) panel.setBackground(Color.CYAN);
+        else if (input.equals("jaune")) panel.setBackground(Color.YELLOW);
+        else if (input.equals("magenta")) panel.setBackground(Color.MAGENTA);
+
+        textField.setText("");
+    }
+}
+
+public class Commande {
+
+    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);
+
+        Observer observer = new Observer();
+
+        JTextField t = new JTextField();
+        t.setLocation(0, 0);
+        t.setSize(200, 20);
+        t.addActionListener(observer);
+
+        JPanel p = new JPanel();
+        p.setSize(200, 200);
+        p.setLocation(0, 0);
+        p.setLayout(null);
+
+        f.add(p);
+        p.add(t);
+        f.setVisible(true);
+    }
+}
\ No newline at end of file
diff --git a/APL2.1/TP10/Commande/Observer.class b/APL2.1/TP10/Commande/Observer.class
new file mode 100644
index 0000000..efb84de
Binary files /dev/null and b/APL2.1/TP10/Commande/Observer.class differ