diff --git a/DEV.2.1/CM-blanc/CM-1/Fenetre.java b/DEV.2.1/CM-blanc/CM-1/Fenetre.java
new file mode 100644
index 0000000..2414e50
--- /dev/null
+++ b/DEV.2.1/CM-blanc/CM-1/Fenetre.java
@@ -0,0 +1,12 @@
+import java.awt.*; 
+import javax.swing.*;
+
+public class Fenetre extends JFrame {
+	public Fenetre() {
+		super("");
+		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		this.setSize(500,500);
+		this.setLocation(500,250);
+
+	}
+}
\ No newline at end of file
diff --git a/DEV.2.1/CM-blanc/CM-1/Main.java b/DEV.2.1/CM-blanc/CM-1/Main.java
new file mode 100644
index 0000000..d2faa22
--- /dev/null
+++ b/DEV.2.1/CM-blanc/CM-1/Main.java
@@ -0,0 +1,10 @@
+import java.awt.*;
+import javax.swing.*; 
+
+public class Main {
+	public static void main(String[] args) {
+		Fenetre fenetre = new Fenetre();
+
+		fenetre.setVisible(true);
+	}
+}
\ No newline at end of file