diff --git a/APL2.1/Controle Machine/horville_apl21/Aléatoire/Aléatoire.java b/APL2.1/Controle Machine/horville_apl21/Aléatoire/Aléatoire.java
new file mode 100644
index 0000000..13eed29
--- /dev/null
+++ b/APL2.1/Controle Machine/horville_apl21/Aléatoire/Aléatoire.java	
@@ -0,0 +1,12 @@
+//HORVILLE Ewen Groupe N°4
+
+import java.util.*;
+
+public class Aléatoire {
+    public static void main(String[] args) {
+        Random r = new Random();
+
+        System.out.println("random propose :\t" + Math.random());
+        System.out.println("nextDouble propose :\t" + r.nextDouble());
+    }
+}
\ No newline at end of file
diff --git a/APL2.1/Controle Machine/horville_apl21/Fermeture/Fermeture.java b/APL2.1/Controle Machine/horville_apl21/Fermeture/Fermeture.java
new file mode 100644
index 0000000..9bda8fd
--- /dev/null
+++ b/APL2.1/Controle Machine/horville_apl21/Fermeture/Fermeture.java	
@@ -0,0 +1,18 @@
+//HORVILLE Ewen Groupe N°4
+
+import java.awt.*;
+import javax.swing.*;
+
+public class Fermeture {
+    public static void main(String[] args) {
+        JFrame f = new JFrame("Fermeture");
+        f.setLocation(150, 150);
+        f.setSize(500, 500);
+        f.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
+        f.addWindowListener(new FermetureListener());
+        f.setVisible(true);
+        
+        TileBackground tb = new TileBackground(100, "./tuile.jpg");
+        f.add(tb);
+    }
+}
\ No newline at end of file
diff --git a/APL2.1/Controle Machine/horville_apl21/Fermeture/FermetureListener.java b/APL2.1/Controle Machine/horville_apl21/Fermeture/FermetureListener.java
new file mode 100644
index 0000000..a58b6e0
--- /dev/null
+++ b/APL2.1/Controle Machine/horville_apl21/Fermeture/FermetureListener.java	
@@ -0,0 +1,27 @@
+//HORVILLE Ewen Groupe N°4
+
+import java.awt.event.*;
+import java.awt.*;
+import javax.swing.*;
+
+public class FermetureListener implements WindowListener {
+
+    private boolean hasBeenMinimised = false;
+
+    public FermetureListener() {}
+    public void windowActivated(WindowEvent evenement) {}
+    public void windowClosed(WindowEvent evenement) {}
+    public void windowDeactivated(WindowEvent evenement) {}
+    public void windowDeiconified(WindowEvent evenement) {}
+    public void windowOpened(WindowEvent evenement) {}
+
+    public void windowClosing(WindowEvent evenement) {
+        if (hasBeenMinimised) {
+            ((JFrame)evenement.getSource()).dispose();
+        }
+    }
+
+    public void windowIconified(WindowEvent evenement) {
+        hasBeenMinimised = true;
+    }
+}
\ No newline at end of file
diff --git a/APL2.1/Controle Machine/horville_apl21/Fermeture/TileBackground.java b/APL2.1/Controle Machine/horville_apl21/Fermeture/TileBackground.java
new file mode 100644
index 0000000..b3c149f
--- /dev/null
+++ b/APL2.1/Controle Machine/horville_apl21/Fermeture/TileBackground.java	
@@ -0,0 +1,32 @@
+import java.awt.*;
+import javax.swing.*;
+
+public class TileBackground extends JComponent {
+    private Image tile;
+    private int tileScale;
+
+    public TileBackground(int tileScale, String imagePath) {
+        super();
+        this.tile = Toolkit.getDefaultToolkit().getImage(imagePath);
+        this.tileScale = tileScale;
+    }
+
+    @Override
+    protected void paintComponent(Graphics brush) {
+        Graphics newBrush = brush.create();
+
+        if (this.isOpaque()) {
+            newBrush.setColor(this.getBackground());
+            newBrush.fillRect(0, 0, this.getWidth(), this.getHeight());
+        }
+
+        int horizontalReps = this.getWidth() / this.tileScale + 1;
+        int verticalReps = this.getHeight() / this.tileScale + 1;
+
+        for (int x = 0; x < horizontalReps; x++) {
+            for (int y = 0; y < verticalReps; y++) {
+                newBrush.drawImage(this.tile, x * tileScale, y * tileScale, tileScale, tileScale, this);
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/APL2.1/Controle Machine/horville_apl21/Fermeture/tuile.jpg b/APL2.1/Controle Machine/horville_apl21/Fermeture/tuile.jpg
new file mode 100644
index 0000000..55612e6
Binary files /dev/null and b/APL2.1/Controle Machine/horville_apl21/Fermeture/tuile.jpg differ
diff --git a/APL2.1/Controle Machine/horville_apl21/Modélisation/Modélisation.mdj b/APL2.1/Controle Machine/horville_apl21/Modélisation/Modélisation.mdj
new file mode 100644
index 0000000..4ce6886
--- /dev/null
+++ b/APL2.1/Controle Machine/horville_apl21/Modélisation/Modélisation.mdj	
@@ -0,0 +1,557 @@
+{
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+							},
+							"name": "void jouer",
+							"parameters": [
+								{
+									"_type": "UMLParameter",
+									"_id": "AAAAAAGAQbujh6gHSNE=",
+									"_parent": {
+										"$ref": "AAAAAAGAQbr0L6f4b9I="
+									},
+									"name": "int colonne",
+									"type": ""
+								}
+							]
+						},
+						{
+							"_type": "UMLOperation",
+							"_id": "AAAAAAGAQbt7saf/ho0=",
+							"_parent": {
+								"$ref": "AAAAAAGAQbmqT6e9eOw="
+							},
+							"name": "String toString"
+						}
+					]
+				},
+				{
+					"_type": "UMLClass",
+					"_id": "AAAAAAGAQb2Y1agLYCI=",
+					"_parent": {
+						"$ref": "AAAAAAFF+qBWK6M3Z8Y="
+					},
+					"name": "Puissance",
+					"operations": [
+						{
+							"_type": "UMLOperation",
+							"_id": "AAAAAAGAQb2zkqg1cC4=",
+							"_parent": {
+								"$ref": "AAAAAAGAQb2Y1agLYCI="
+							},
+							"name": "void main",
+							"parameters": [
+								{
+									"_type": "UMLParameter",
+									"_id": "AAAAAAGAQb3L3Kg8tz0=",
+									"_parent": {
+										"$ref": "AAAAAAGAQb2zkqg1cC4="
+									},
+									"name": "String[] args",
+									"type": ""
+								}
+							]
+						}
+					]
+				}
+			]
+		}
+	]
+}
\ No newline at end of file
diff --git a/APL2.1/Controle Machine/horville_apl21/Puissance/Grille.java b/APL2.1/Controle Machine/horville_apl21/Puissance/Grille.java
new file mode 100644
index 0000000..939b397
--- /dev/null
+++ b/APL2.1/Controle Machine/horville_apl21/Puissance/Grille.java	
@@ -0,0 +1,52 @@
+//HORVILLE Ewen Groupe N°4
+
+public class Grille {
+    private short[][] Cases = new short[7][6];
+    private int joueurActuel;
+
+    public Grille() {
+        joueurActuel = 0;
+    }
+
+    public void jouer(int colonne) {
+        if (colonne < 1 && colonne > 7) {
+            System.out.println("N° de colonne invalide !");
+            return;
+        }
+
+        boolean placementValide = false;
+        for (int i = 5; i >= 0; i--) {
+            if (Cases[colonne-1][i] == 0) {
+                Cases[colonne-1][i] = (short)(joueurActuel+1);
+                joueurActuel = (joueurActuel + 1) % 2;
+                placementValide = true;
+                break;
+            }
+        }
+
+        if (!placementValide) {
+            System.out.println("Colonne n°" + colonne + " pleine !");
+        }
+    }
+
+    @Override
+    public String toString() {
+        String str = "";
+
+        for (int x = 0; x < 6; x++) {
+            for (int y = 0; y < 7; y++) {
+                str += "│";
+
+                if (Cases[y][x] == 0) str += " ";
+                else if (Cases[y][x] == 1) str += "○";
+                else if (Cases[y][x] == 2) str += "●";
+            }
+            
+            str += "│\n";
+        }
+
+        str += "┴─┴─┴─┴─┴─┴─┴─┴";
+
+        return str;
+    }
+}
\ No newline at end of file
diff --git a/APL2.1/Controle Machine/horville_apl21/Puissance/Puissance.java b/APL2.1/Controle Machine/horville_apl21/Puissance/Puissance.java
new file mode 100644
index 0000000..05d7816
--- /dev/null
+++ b/APL2.1/Controle Machine/horville_apl21/Puissance/Puissance.java	
@@ -0,0 +1,15 @@
+//HORVILLE Ewen Groupe N°4
+
+public class Puissance {
+    public static void main(String[] args) {
+        Grille g = new Grille();
+
+        g.jouer(3);
+        g.jouer(4);
+        g.jouer(4);
+        g.jouer(6);
+        g.jouer(4);
+        g.jouer(6);
+        System.out.println(g);
+    }
+}
\ No newline at end of file
diff --git a/APL2.1/Controle Machine/horville_apl21/Tuile/TileBackground.java b/APL2.1/Controle Machine/horville_apl21/Tuile/TileBackground.java
new file mode 100644
index 0000000..f285657
--- /dev/null
+++ b/APL2.1/Controle Machine/horville_apl21/Tuile/TileBackground.java	
@@ -0,0 +1,34 @@
+//HORVILLE Ewen Groupe N°4
+
+import java.awt.*;
+import javax.swing.*;
+
+public class TileBackground extends JComponent {
+    private Image tile;
+    private int tileScale;
+
+    public TileBackground(int tileScale, String imagePath) {
+        super();
+        this.tile = Toolkit.getDefaultToolkit().getImage(imagePath);
+        this.tileScale = tileScale;
+    }
+
+    @Override
+    protected void paintComponent(Graphics brush) {
+        Graphics newBrush = brush.create();
+
+        if (this.isOpaque()) {
+            newBrush.setColor(this.getBackground());
+            newBrush.fillRect(0, 0, this.getWidth(), this.getHeight());
+        }
+
+        int horizontalReps = this.getWidth() / this.tileScale + 1;
+        int verticalReps = this.getHeight() / this.tileScale + 1;
+
+        for (int x = 0; x < horizontalReps; x++) {
+            for (int y = 0; y < verticalReps; y++) {
+                newBrush.drawImage(this.tile, x * tileScale, y * tileScale, tileScale, tileScale, this);
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/APL2.1/Controle Machine/horville_apl21/Tuile/Tuile.java b/APL2.1/Controle Machine/horville_apl21/Tuile/Tuile.java
new file mode 100644
index 0000000..da6b41c
--- /dev/null
+++ b/APL2.1/Controle Machine/horville_apl21/Tuile/Tuile.java	
@@ -0,0 +1,17 @@
+//HORVILLE Ewen Groupe N°4
+
+import java.awt.*;
+import javax.swing.*;
+
+public class Tuile {
+    public static void main(String[] args) {
+        JFrame f = new JFrame("Tuile");
+        f.setLocation(150, 150);
+        f.setSize(500, 500);
+        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        f.setVisible(true);
+
+        TileBackground tb = new TileBackground(100, "./tuile.jpg");
+        f.add(tb);
+    }
+}
\ No newline at end of file
diff --git a/APL2.1/Controle Machine/horville_apl21/Tuile/tuile.jpg b/APL2.1/Controle Machine/horville_apl21/Tuile/tuile.jpg
new file mode 100644
index 0000000..55612e6
Binary files /dev/null and b/APL2.1/Controle Machine/horville_apl21/Tuile/tuile.jpg differ
diff --git a/DEV 2.3/Largest/Largest.class b/DEV 2.3/Largest/Largest.class
new file mode 100644
index 0000000..9d0de60
Binary files /dev/null and b/DEV 2.3/Largest/Largest.class differ
diff --git a/DEV 2.3/Largest/Largest.java b/DEV 2.3/Largest/Largest.java
new file mode 100644
index 0000000..6f04a56
--- /dev/null
+++ b/DEV 2.3/Largest/Largest.java	
@@ -0,0 +1,19 @@
+import java.util.Objects;
+
+public class Largest {
+    
+    /**
+    * Return the largest element in a list.
+    *
+    * @param list A list of integers
+    * @return The largest number in the given list
+    */
+    public static int largest(int[] list) {
+        Objects.requireNonNull(list);
+        int index, max=Integer.MIN_VALUE;
+        for (index = 0; index < list.length; index++) {
+            max = list[index] > max ? list[index] : max;
+        }
+        return max;
+    }
+  }
\ No newline at end of file
diff --git a/DEV 2.3/Largest/TestLargest.class b/DEV 2.3/Largest/TestLargest.class
new file mode 100644
index 0000000..ab0a951
Binary files /dev/null and b/DEV 2.3/Largest/TestLargest.class differ
diff --git a/DEV 2.3/Largest/TestLargest.java b/DEV 2.3/Largest/TestLargest.java
new file mode 100644
index 0000000..6050a99
--- /dev/null
+++ b/DEV 2.3/Largest/TestLargest.java	
@@ -0,0 +1,36 @@
+import static org.junit.Assert.assertEquals;
+
+import java.util.Arrays;
+
+import org.junit.Test;
+ 
+public class TestLargest {
+ 
+    @Test
+    public void testSimple() {
+        assertEquals(9, Largest.largest(new int[] {9,8,7}));
+    }
+
+    @Test
+    public void testBoundary() {
+        assertEquals(Integer.MAX_VALUE, Largest.largest(new int[] {1, 28825, Integer.MAX_VALUE}));
+    }
+
+    @Test
+    public void testInverse() {
+        assert(3 != Largest.largest(new int[] {1, 3, 7}));
+    }
+
+    @Test
+    public void testCrosscheck() {
+        int[] a = new int[] {3, 1, 7};
+        Arrays.sort(a);
+        assert(Largest.largest(new int[] {3, 1, 7}) == a[a.length-1]);
+    }
+
+    @Test
+    public void testError() {
+        Largest.largest(new int[] {});
+        Largest.largest(null);
+    }
+}
\ No newline at end of file