diff --git a/POO/src/main/VueConnexion.java b/POO/src/main/VueConnexion.java
index a0032d9..ac9e150 100644
--- a/POO/src/main/VueConnexion.java
+++ b/POO/src/main/VueConnexion.java
@@ -26,7 +26,8 @@ public class VueConnexion extends Vue {
 		//Creation fenetre
 		frame = new JFrame("Connexion");
 		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
-		frame.setSize(120, 40);
+		frame.setSize(400, 100);
+		frame.setLocationRelativeTo(null);
 		
 		//Creation panel
 		panel = new JPanel(new GridLayout(3,1));
@@ -41,7 +42,6 @@ public class VueConnexion extends Vue {
 		frame.getContentPane().add(panel, BorderLayout.CENTER);
 		
 		//Affiche la fenetre
-		frame.pack();
 		frame.setVisible(true);
 	}
 	
diff --git a/POO/src/messages/Message.java b/POO/src/messages/Message.java
new file mode 100644
index 0000000..6d7079c
--- /dev/null
+++ b/POO/src/messages/Message.java
@@ -0,0 +1,15 @@
+package messages;
+
+import java.io.Serializable;
+
+public class Message implements Serializable {
+	
+	protected enum TypeMessage {JE_SUIS_ACTIF, JE_SUIS_INACTIF, INFO_PSEUDO, TEXTE, IMAGE, FICHIER}
+	protected TypeMessage type;
+	protected static final long serialVersionUID = 1L;
+	protected Exception
+	
+	public TypeMessage getTypeMessage() {
+		return this.type;
+	}
+}
diff --git a/POO/src/messages/MessageSysteme.java b/POO/src/messages/MessageSysteme.java
new file mode 100644
index 0000000..fdb4798
--- /dev/null
+++ b/POO/src/messages/MessageSysteme.java
@@ -0,0 +1,15 @@
+package messages;
+
+import messages.Message.TypeMessage;
+
+public class MessageActivite extends Message {
+	
+	private String pseudo;
+
+	public MessageSysteme(TypeMessage t){
+		if (t!=TypeMessage.) {
+			this.type=t;
+		}
+	}
+
+}