diff --git a/src/main/java/fr/myny/grid/BuildGrid.java b/src/main/java/fr/myny/grid/BuildGrid.java
index 9913cd9..3a88436 100644
--- a/src/main/java/fr/myny/grid/BuildGrid.java
+++ b/src/main/java/fr/myny/grid/BuildGrid.java
@@ -1,4 +1,90 @@
 package fr.myny.grid;
 
 public class BuildGrid {
-}
+
+    private int m_dim_x;
+    private int m_dim_y;
+    private float m_grid[][];
+
+    /*
+     CONSTRUCTOR
+     */
+
+    public BuildGrid(int dim)
+    {
+        System.out.print("Creating a new grid: ");
+
+        m_grid = new float[dim][dim];
+        setDimX(dim);
+        setDimY(dim);
+
+        this.fillWith(0);
+        System.out.println("Done");
+    }
+
+    public BuildGrid( int dim_x, int dim_y)
+    {
+        System.out.print("Creating a new grid: ");
+
+        m_grid = new float[dim_x][dim_y];
+        setDimX(dim_x);
+        setDimY(dim_y);
+
+        this.fillWith(0);
+        System.out.println("Done");
+    }
+
+    /*
+     SETTERS & GETTERS
+     */
+
+    private int getDimX ()
+    {
+        return m_dim_x;
+    }
+
+    private int getDimY ()
+    {
+        return m_dim_y;
+    }
+
+    private void setDimX (int value)
+    {
+        m_dim_x = value;
+    }
+
+    private void setDimY (int value)
+    {
+        m_dim_y = value;
+    }
+
+    /*
+     TRANSFORM THE GRID
+     */
+
+    public void putValue(float value, int posX, int posY)
+    {
+        m_grid[posX][posY] = value;
+    }
+
+    public void displayGrid ()
+    {
+        for (int i = 0; i < getDimX(); i++) {
+            System.out.print("[  ");
+            for (int y = 0; y < getDimY(); y++) {
+                System.out.print(m_grid[i][y]);
+                System.out.print("  ");
+            }
+            System.out.println("]");
+        }
+    }
+
+    public void fillWith ( float value)
+    {
+        for (int i = 0; i < getDimX(); i++) {
+            for (int y = 0; y < getDimY(); y++) {
+                m_grid[i][y] = value;
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/test.java b/src/main/java/test.java
index 604d790..0c3e58e 100644
--- a/src/main/java/test.java
+++ b/src/main/java/test.java
@@ -1,7 +1,9 @@
+import fr.myny.grid.BuildGrid;
+
 public class test{
     public static void main(String[] args){
-        System.out.println("Il n'y a rien a voir !");
-        System.out.println("nico fait un test");
-        System.out.println("Il Je test les branchs");
+        BuildGrid grid = new BuildGrid(5);
+        grid.putValue(15.5F, 2,3);
+        grid.displayGrid();
     }
 }
\ No newline at end of file