diff --git a/DEV.2.1/CM-blanc/CM-1/1.Duplication/Duplication.java b/DEV.2.1/CM-blanc/CM-1/1.Duplication/Duplication.java
new file mode 100644
index 0000000..2b42f59
--- /dev/null
+++ b/DEV.2.1/CM-blanc/CM-1/1.Duplication/Duplication.java
@@ -0,0 +1,11 @@
+import java.util.Arrays;
+
+public class Duplication {
+    public static void main(String[] args) {
+        double[] tableau = new double[10];
+        
+        Arrays.fill(tableau, 5.8);
+        
+        System.out.println(Arrays.toString(tableau));
+    }
+}
diff --git a/DEV.2.1/CM-blanc/CM-1/2.Morpion/Configuration.java b/DEV.2.1/CM-blanc/CM-1/2.Morpion/Configuration.java
new file mode 100644
index 0000000..99f75f8
--- /dev/null
+++ b/DEV.2.1/CM-blanc/CM-1/2.Morpion/Configuration.java
@@ -0,0 +1,27 @@
+public class Configuration {
+
+	private char[9] grille; 
+/*
+On veut que chaque case soit un x ou un o et que si elle est vide alors n
+la première case est 1 la deuxième 2, etc...
+*/
+
+	public Configuration() {
+		this.grille = {'n','n','n','n','n','n','n','n','n'};
+	
+	}
+
+	public static int estLibre(int posGrille) {
+		if(this.grille[posGrille-1] == 'n') {
+			return true;
+		} 
+	}
+
+	public void jouer(int position, char joueur) {
+		if(joueur == 'x') {
+			this.grille[position-1] = 'x';
+		} else if(joueur == 'o') {
+			this.grille[position-1] = 'o';
+		}
+	} 
+}
\ No newline at end of file
diff --git a/DEV.2.1/CM-blanc/CM-1/2.Morpion/Main.java b/DEV.2.1/CM-blanc/CM-1/2.Morpion/Main.java
new file mode 100644
index 0000000..e69de29
diff --git a/DEV.2.1/CM-blanc/CM-1/3.Declinaisons/Declinaisons.java b/DEV.2.1/CM-blanc/CM-1/3.Declinaisons/Declinaisons.java
index f10715e..f4c9d03 100644
--- a/DEV.2.1/CM-blanc/CM-1/3.Declinaisons/Declinaisons.java
+++ b/DEV.2.1/CM-blanc/CM-1/3.Declinaisons/Declinaisons.java
@@ -3,14 +3,10 @@ import java.awt.*;
 
 public class Declinaisons extends JComponent {
 
-	private Color cyan = Color.CYAN;
-	private Color pink = Color.PINK;
-	private Color magenta = Color.MAGENTA;
-	private Color yellow = Color.YELLOW;
-	private Color blue = Color.BLUE;
-
-	public Declinaisons() {
-		super();
+	public Declinaisons(String form, String fond) {
+		if(inst % 2 == 0) {
+			secondPinceau.setColor("")
+		}
 	}
 
 	@Override
@@ -21,10 +17,19 @@ public class Declinaisons extends JComponent {
 			secondPinceau.setColor(this.getBackground());
 			secondPinceau.fillRect(0, 0, this.getWidth(), this.getHeight());
 		}
-
         secondPinceau.setColor(this.getForeground());
 
-        
+        for(int i=0; i<10; i++){
+        	if(this.num % 2 == 0){
+        	this.num ++;
+        	secondPinceau.setColor(Color.MAGENTA);
+        } else {
+        	secondPinceau.setColor(Color.CYAN);
+        }
+    }
+
+
+
         int[] Xpoints = {this.getWidth()/4, this.getWidth()/4*3, this.getWidth()/2};
         int[] Ypoints = {this.getHeight()/2, this.getHeight()/4, this.getHeight()/4*3};
         secondPinceau.fillPolygon(Xpoints, Ypoints, 3);
diff --git a/DEV.2.1/CM-blanc/CM-1/3.Declinaisons/Main.java b/DEV.2.1/CM-blanc/CM-1/3.Declinaisons/Main.java
index 5512d01..869ae79 100644
--- a/DEV.2.1/CM-blanc/CM-1/3.Declinaisons/Main.java
+++ b/DEV.2.1/CM-blanc/CM-1/3.Declinaisons/Main.java
@@ -9,8 +9,10 @@ public class Main {
 		GridLayout tabl = new GridLayout(2,2);
 		fenetre.setLayout(tabl);
 
-		for(int i = 0; i < 4; i++)
+		for(int i = 0; i < 4; i++){
   			fenetre.add(new Declinaisons());
+		}
+			
 
 	}
 }
\ No newline at end of file
diff --git a/DEV.2.1/cours-java/9.01 Exo.docx b/DEV.2.1/cours-java/9.01 Exo.docx
new file mode 100644
index 0000000..837a98a
Binary files /dev/null and b/DEV.2.1/cours-java/9.01 Exo.docx differ