diff --git a/ClassDiagram1.png b/ClassDiagram1.png
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index 0000000..708ae46
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diff --git a/DEV.2.1/CM-blanc/CM-1/Main.java b/DEV.2.1/CM-blanc/CM-1/Main.java
index d2faa22..8bb006e 100644
--- a/DEV.2.1/CM-blanc/CM-1/Main.java
+++ b/DEV.2.1/CM-blanc/CM-1/Main.java
@@ -7,4 +7,74 @@ public class Main {
 
 		fenetre.setVisible(true);
 	}
+}
+
+
+/**
+ * 
+ */ 
+
+public class Main {
+    public static void main(String[] args) {
+        FenetreDebut fenetredebut = new FenetreDebut();
+        fenetredebut.setVisible(true);
+    }
+}
+
+
+/**
+ * La classe <code>PaintFenetreDebut</code> est utilisée pour dessiner et faire apparaître l'image de menu sur
+ * la fenêtre de début de jeu.
+ *  
+ * @version 1.2
+ * @author Emmanuel SRIVASTAVA-TIAMZON
+ */
+
+import javax.swing.*;
+import java.awt.*;
+
+public class PaintFenetreDebut extends JComponent {
+    
+    private Image MenuDebut;
+
+    public PaintFenetreDebut() {
+        this.MenuDebut = Toolkit.getDefaultToolkit().getImage("../image/MenuDebut.jpg");
+
+    }
+
+    @Override
+    public void paintComponent(Graphics pinceau) {
+        Graphics secondPinceau = pinceau.create();
+
+        if (this.isOpaque()) {
+            secondPinceau.setColor(this.getBackground());
+            secondPinceau.fillRect(0, 0, this.getWidth(), this.getHeight());
+        }
+
+        secondPinceau.drawImage(this.MenuDebut, this.getWidth(), this.getHeight(), this);
+
+    }
+}
+
+
+
+import javax.swing.*;
+import java.awt.*;
+
+public class FenetreDebut extends JFrame {
+    public FenetreDebut() {
+        super("SameGame");
+        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        this.setSize(765, 510);
+        this.setLocation(this.getWidth()/2 - 100 ,this.getHeight()/2 - 100);
+
+        JPanel imagePanel = new JPanel();
+        imagePanel.setLayout(new GridLayout(1,1));
+
+        PaintFenetreDebut paintfenetredebut = new PaintFenetreDebut();
+        this.add(paintfenetredebut);
+
+    }
+
+
 }
\ No newline at end of file
diff --git a/DEV.2.1/cours-java/11.01 Exo.docx b/DEV.2.1/cours-java/11.01 Exo.docx
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diff --git a/DEV.2.1/cours-java/13 Diagramme de séquence.docx b/DEV.2.1/cours-java/13 Diagramme de séquence.docx
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diff --git a/SequenceDiagram1.png b/SequenceDiagram1.png
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diff --git a/UseCaseDiagram1.png b/UseCaseDiagram1.png
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