diff --git a/DEV2.1/TP2/Date.java b/DEV2.1/TP2/Date.java
index 0d1792b..eb3682f 100644
--- a/DEV2.1/TP2/Date.java
+++ b/DEV2.1/TP2/Date.java
@@ -68,12 +68,5 @@ public class Date
     }
   } 
 
-  
-
-  public static void main(String[] args) 
-  {
-    Date test = new Date(2023,12,30);
-    System.out.println(test.toString());
-    System.out.println(test.lendemain());
-  }
 }
+
diff --git a/DEV2.1/TP3/Feuille.java b/DEV2.1/TP3/Feuille.java
new file mode 100644
index 0000000..c2c382f
--- /dev/null
+++ b/DEV2.1/TP3/Feuille.java
@@ -0,0 +1,9 @@
+Public class Feuille extends Paper
+{
+	public Feuille()
+	{
+		super();
+		super.setSize(0.797167,1.168568);
+		super.setImageableArea(0.06,0.06,0.75,1.09);
+	}
+} 
\ No newline at end of file
diff --git a/DEV2.1/TP3/gris.java b/DEV2.1/TP3/gris.java
new file mode 100644
index 0000000..0808a78
--- /dev/null
+++ b/DEV2.1/TP3/gris.java
@@ -0,0 +1,34 @@
+Public class Gris extends Color
+{
+	private float gr;
+
+	public Gris(gr)
+	{
+		super(gr,gr,gr);
+	}
+	getHeight()
+	{
+
+	}
+	getWidth()
+	{
+		
+	}
+	getImageableHeight()
+	{
+
+	}
+	getImageableWidht()
+	{
+
+	}
+	getImageableX()
+	{
+
+	}
+	getImageableY()
+	{
+
+	}
+
+} 
diff --git a/DEV2.1/TP4/Chien.class b/DEV2.1/TP4/Chien.class
new file mode 100644
index 0000000..c02fa6c
Binary files /dev/null and b/DEV2.1/TP4/Chien.class differ
diff --git a/DEV2.1/TP4/Chien.java b/DEV2.1/TP4/Chien.java
new file mode 100644
index 0000000..df7905d
--- /dev/null
+++ b/DEV2.1/TP4/Chien.java
@@ -0,0 +1,23 @@
+import javax.swing.*;
+import java.awt.*;
+
+public class Chien {
+	public static void main(String[] args) {
+	
+	JFrame fenetre = new JFrame();
+	FlowLayout main = new FlowLayout(FlowLayout.CENTER);
+	fenetre.setLayout(main);
+	fenetre.setSize(500, 500);
+    fenetre.setLocation(0, 0);
+
+    JLabel question = new JLabel("Aimez-vous les chiens ?");
+    question.setHorizontalAlignment(JLabel.CENTER);
+    fenetre.add(question, BorderLayout.CENTER);
+   	fenetre.add(new JButton("Oui"));
+   	fenetre.add(new JButton("Non"));
+   	fenetre.add(new JButton("NSPP"));
+
+    fenetre.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+    fenetre.setVisible(true);	
+	}
+}
\ No newline at end of file
diff --git a/DEV2.1/TP4/Damier.class b/DEV2.1/TP4/Damier.class
new file mode 100644
index 0000000..282fc50
Binary files /dev/null and b/DEV2.1/TP4/Damier.class differ
diff --git a/DEV2.1/TP4/Damier.java b/DEV2.1/TP4/Damier.java
new file mode 100644
index 0000000..77d14bf
--- /dev/null
+++ b/DEV2.1/TP4/Damier.java
@@ -0,0 +1,34 @@
+import javax.swing.*;
+import java.awt.*;
+
+public class Damier {
+	public static void main(String[] args) {
+	 
+	int taille = Integer.parseInt(args[0]);
+	JFrame fenetre = new JFrame();
+    fenetre.setSize(500, 500);
+    fenetre.setLocation(0, 0);
+	GridLayout main = new GridLayout(taille,taille);
+	fenetre.setLayout(main);
+
+    for (int i = 0;i<taille;i++) 
+    {
+    	for (int j = 0;j<taille;j++) 
+    	{
+	    	JPanel temp = new JPanel();
+	    	if ((i+j)%2==0) 
+	    	{
+	    		temp.setBackground(Color.CYAN);
+	    	}	
+	    	else
+	    	{
+	    		temp.setBackground(Color.WHITE);
+	       	}
+	    	fenetre.add(temp);
+	    }
+    }
+
+    fenetre.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+    fenetre.setVisible(true);	
+	}
+}
\ No newline at end of file
diff --git a/DEV2.1/TP4/Moto.class b/DEV2.1/TP4/Moto.class
new file mode 100644
index 0000000..d98e7a6
Binary files /dev/null and b/DEV2.1/TP4/Moto.class differ
diff --git a/DEV2.1/TP4/Moto.java b/DEV2.1/TP4/Moto.java
new file mode 100644
index 0000000..fb26829
--- /dev/null
+++ b/DEV2.1/TP4/Moto.java
@@ -0,0 +1,9 @@
+public class Moto implements Vehicule{
+  public int nbRoues=2;
+  public int nbRoues() {
+    return nbRoues;
+  }
+  public String sorte() {
+    return "Moto";
+  }
+}
\ No newline at end of file
diff --git a/DEV2.1/TP4/Moyenne.class b/DEV2.1/TP4/Moyenne.class
new file mode 100644
index 0000000..38d86fb
Binary files /dev/null and b/DEV2.1/TP4/Moyenne.class differ
diff --git a/DEV2.1/TP4/Moyenne.java b/DEV2.1/TP4/Moyenne.java
new file mode 100644
index 0000000..692d2d6
--- /dev/null
+++ b/DEV2.1/TP4/Moyenne.java
@@ -0,0 +1,49 @@
+public class Moyenne {
+	float value = 0;
+	int nbVal = 0;
+	public void add(int x)
+	{
+		value+=x;
+		nbVal++;
+	}
+
+	public void add(short x)
+	{
+		value+=x;
+		nbVal++;
+	}
+
+	public void add(long x)
+	{
+		value+=x;
+		nbVal++;
+	}
+
+	public void add(double x)
+	{
+		value+=x;
+		nbVal++;
+	}
+	
+	public void add(byte x)
+	{
+		value+=x;
+		nbVal++;
+	}
+
+	public void add(float x)
+	{
+		value+=x;
+		nbVal++;
+	}
+	
+	public float getAverage()
+	{
+		return value/nbVal	;
+	}
+
+
+	public static void main(String[] args) {
+	
+	}
+}
\ No newline at end of file
diff --git a/DEV2.1/TP4/Test.class b/DEV2.1/TP4/Test.class
new file mode 100644
index 0000000..dd83667
Binary files /dev/null and b/DEV2.1/TP4/Test.class differ
diff --git a/DEV2.1/TP4/Test.java b/DEV2.1/TP4/Test.java
new file mode 100644
index 0000000..1e8f683
--- /dev/null
+++ b/DEV2.1/TP4/Test.java
@@ -0,0 +1,24 @@
+import javax.swing.JOptionPane;
+
+public class Test {
+  
+
+  public static void main(String[] args) {
+    Vehicule v;
+    Object[] choix = {"Voiture", "Moto"};
+ 
+    int reponse = JOptionPane.showOptionDialog(null,
+      "Quel v\u00E9hicule choisissez-vous ?",
+      "Question",
+      JOptionPane.DEFAULT_OPTION,
+      JOptionPane.QUESTION_MESSAGE,
+      null,
+      choix,
+      null);
+    if (reponse == 0)
+      v = new Voiture();
+    else
+      v = new Moto();
+    System.out.println("Une "+v.sorte()+" poss\u00E8de "+v.nbRoues()+" roues.");
+  }
+}
diff --git a/DEV2.1/TP4/Vehicule.class b/DEV2.1/TP4/Vehicule.class
new file mode 100644
index 0000000..7da2c64
Binary files /dev/null and b/DEV2.1/TP4/Vehicule.class differ
diff --git a/DEV2.1/TP4/Vehicule.java b/DEV2.1/TP4/Vehicule.java
new file mode 100644
index 0000000..6396546
--- /dev/null
+++ b/DEV2.1/TP4/Vehicule.java
@@ -0,0 +1,4 @@
+public interface Vehicule{
+    public int nbRoues();
+    public String sorte();
+}
\ No newline at end of file
diff --git a/DEV2.1/TP4/Voiture.class b/DEV2.1/TP4/Voiture.class
new file mode 100644
index 0000000..9a52ea9
Binary files /dev/null and b/DEV2.1/TP4/Voiture.class differ
diff --git a/DEV2.1/TP4/Voiture.java b/DEV2.1/TP4/Voiture.java
new file mode 100644
index 0000000..79f71ca
--- /dev/null
+++ b/DEV2.1/TP4/Voiture.java
@@ -0,0 +1,9 @@
+public class Voiture implements Vehicule{
+  public int nbRoues=4;
+  public int nbRoues() {
+    return nbRoues;
+  }
+  public String sorte() {
+    return "Voiture";
+  } 
+}
\ No newline at end of file
diff --git a/DEV2.1/TP4/formes.java b/DEV2.1/TP4/formes.java
new file mode 100644
index 0000000..a9192bf
--- /dev/null
+++ b/DEV2.1/TP4/formes.java
@@ -0,0 +1,22 @@
+import javax.swing.*;
+import java.awt.*;
+
+public class formes extends JComponent{
+
+	public void horloge(Graphics pinceau)
+	{
+			
+	}
+
+	public static void main(String[] args) {
+	 
+		DisplayGraphics m = new DisplayGraphics();
+		JFrame fenetre = new JFrame();
+		fenetre.add(m);
+	    fenetre.setSize(1000, 1000);
+	    fenetre.setLocation(0, 0);
+
+	    fenetre.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+	    fenetre.setVisible(true);	
+		}
+}
\ No newline at end of file