diff --git a/APL2.1/TP8/Radio/ObservateurRadio.class b/APL2.1/TP8/Radio/ObservateurRadio.class
new file mode 100644
index 0000000..832b9e7
Binary files /dev/null and b/APL2.1/TP8/Radio/ObservateurRadio.class differ
diff --git a/APL2.1/TP8/Radio/ObservateurRadio.java b/APL2.1/TP8/Radio/ObservateurRadio.java
new file mode 100644
index 0000000..3e2b8e1
--- /dev/null
+++ b/APL2.1/TP8/Radio/ObservateurRadio.java
@@ -0,0 +1,34 @@
+    import java.awt.*;
+    import javax.swing.*;
+    import java.awt.event.*;
+
+    public class ObservateurRadio implements ActionListener
+    {
+    	private JPanel panneau;
+
+    	public ObservateurRadio(JPanel panneau)
+    	{
+    		this.panneau = panneau;
+    	}
+
+    	@Override
+    	public void actionPerformed(ActionEvent e)
+    	{
+    		String action = e.getActionCommand();
+
+    		if (action == "CYAN")
+    		{
+    			panneau.setBackground(Color.CYAN);
+    		}
+
+    		else if (action == "MAGENTA")
+    		{
+    			panneau.setBackground(Color.MAGENTA);
+    		}
+
+    		else if (action == "YELLOW")
+    		{
+    			panneau.setBackground(Color.YELLOW);
+    		}
+    	}
+    }
diff --git a/APL2.1/TP8/Radio/Radio.class b/APL2.1/TP8/Radio/Radio.class
new file mode 100644
index 0000000..f28c5a0
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diff --git a/APL2.1/TP8/Radio/Radio.java b/APL2.1/TP8/Radio/Radio.java
new file mode 100644
index 0000000..f38f856
--- /dev/null
+++ b/APL2.1/TP8/Radio/Radio.java
@@ -0,0 +1,42 @@
+    import java.awt.*;
+    import javax.swing.*;
+    import java.awt.event.*;
+
+    public class Radio
+    {
+    	static public void main(String[] args)
+    	{
+    		JFrame fenetre = new JFrame();
+    		fenetre.setSize(300, 300);
+    		fenetre.setLocation(100, 100);
+    		fenetre.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+
+    		JPanel panneau = new JPanel();
+    		JPanel colorPanel = new JPanel();
+    		ButtonGroup groupe = new ButtonGroup();
+    		JRadioButton cyanBtn = new JRadioButton("CYAN");
+    		JRadioButton magentaBtn = new JRadioButton("MAGENTA");
+    		JRadioButton yellowBtn = new JRadioButton("YELLOW");
+
+    		ObservateurRadio observateur = new ObservateurRadio(colorPanel);
+
+    		panneau.setLayout(new GridLayout(3, 1));
+
+    		panneau.add(cyanBtn);
+    		panneau.add(magentaBtn);
+    		panneau.add(yellowBtn);
+
+    		groupe.add(cyanBtn);
+    		groupe.add(magentaBtn);
+    		groupe.add(yellowBtn);
+
+    		cyanBtn.addActionListener(observateur);
+    		magentaBtn.addActionListener(observateur);
+    		yellowBtn.addActionListener(observateur);
+
+    		fenetre.add(colorPanel);
+    		fenetre.add(panneau, BorderLayout.SOUTH);
+
+    		fenetre.setVisible(true);
+    	}
+    }