diff --git a/DEV.2.1/CM-blanc/CM-1/Duplication.java b/DEV.2.1/CM-blanc/CM-1/Duplication.java
new file mode 100644
index 0000000..2b42f59
--- /dev/null
+++ b/DEV.2.1/CM-blanc/CM-1/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));
+    }
+}