diff --git a/src/lab14_strategy/ex2/SortAlgorithm.java b/src/lab14_strategy/ex2/SortAlgorithm.java
new file mode 100644
index 0000000..77858fc
--- /dev/null
+++ b/src/lab14_strategy/ex2/SortAlgorithm.java
@@ -0,0 +1,5 @@
+package lab14_strategy.ex2;
+
+public interface SortAlgorithm {
+    void sort(int[] vector);
+}
diff --git a/src/lab14_strategy/ex2/Sorter.java b/src/lab14_strategy/ex2/Sorter.java
new file mode 100644
index 0000000..f68f610
--- /dev/null
+++ b/src/lab14_strategy/ex2/Sorter.java
@@ -0,0 +1,21 @@
+package lab14_strategy.ex2;
+
+public class Sorter {
+    private SortAlgorithm algorithm;
+    public void sort(int[] vector) {
+        algorithm.sort(vector);
+    }
+
+    public void setAlgorithm(SortAlgorithm algorithm) {
+        this.algorithm = algorithm;
+    }
+
+    public void showVectorData(int[] vector) {
+        StringBuilder sb = new StringBuilder();
+
+        for (int j : vector) {
+            sb.append(j).append("\t");
+        }
+        System.out.println(sb);
+    }
+}
diff --git a/src/lab14_strategy/ex2/StrategySortLauncher.java b/src/lab14_strategy/ex2/StrategySortLauncher.java
new file mode 100644
index 0000000..16f56b4
--- /dev/null
+++ b/src/lab14_strategy/ex2/StrategySortLauncher.java
@@ -0,0 +1,35 @@
+package lab14_strategy.ex2;
+
+import lab14_strategy.ex2.algorithms.BubbleSort;
+import lab14_strategy.ex2.algorithms.InsertionSort;
+import lab14_strategy.ex2.algorithms.SelectionSort;
+
+public class StrategySortLauncher {
+    public static void main(String[] args) {
+        StrategySortLauncher launcher = new StrategySortLauncher();
+        launcher.test();
+    }
+
+    public void test() {
+        int[] tab1 = { 99, 11, 2, 33, 12, 1, 0, 99, 34, 35 };
+        int[] tab2 = { 99, 11, 2, 33, 12, 1, 0, 99, 34, 35 };
+        int[] tab3 = { 99, 11, 2, 33, 12, 1, 0, 99, 34, 35 };
+
+        Sorter sorter = new Sorter();
+
+        System.out.println("test bubble sort");
+        sorter.setAlgorithm(new BubbleSort());
+        sorter.sort(tab1);
+        sorter.showVectorData(tab1);
+
+        System.out.println("test insert sort");
+        sorter.setAlgorithm(new InsertionSort());
+        sorter.sort(tab2);
+        sorter.showVectorData(tab2);
+
+        System.out.println("test selection sort");
+        sorter.setAlgorithm(new SelectionSort());
+        sorter.sort(tab3);
+        sorter.showVectorData(tab3);
+    }
+}
diff --git a/src/lab14_strategy/ex2/algorithms/BubbleSort.java b/src/lab14_strategy/ex2/algorithms/BubbleSort.java
new file mode 100644
index 0000000..0e57df4
--- /dev/null
+++ b/src/lab14_strategy/ex2/algorithms/BubbleSort.java
@@ -0,0 +1,23 @@
+package lab14_strategy.ex2.algorithms;
+
+import lab14_strategy.ex2.SortAlgorithm;
+
+public class BubbleSort implements SortAlgorithm {
+    @Override
+    public void sort(int[] vector) {
+        int temp;
+        int nbrePermutation = -1;
+        int nbreIteration = 0;
+        while (nbrePermutation != 0) {
+            nbrePermutation = 0;
+            for (int i=0; i<vector.length - nbreIteration - 1; i++) {
+                if (vector[i] > vector[i + 1]) {
+                    nbrePermutation++;
+                    temp = vector[i + 1];
+                    vector[i + 1] = vector[i];
+                    vector[i] = temp;
+                }
+            }
+        }
+    }
+}
diff --git a/src/lab14_strategy/ex2/algorithms/InsertionSort.java b/src/lab14_strategy/ex2/algorithms/InsertionSort.java
new file mode 100644
index 0000000..7a885b1
--- /dev/null
+++ b/src/lab14_strategy/ex2/algorithms/InsertionSort.java
@@ -0,0 +1,22 @@
+package lab14_strategy.ex2.algorithms;
+
+import lab14_strategy.ex2.SortAlgorithm;
+
+public class InsertionSort implements SortAlgorithm {
+    @Override
+    public void sort(int[] vector) {
+        int temp;
+        for (int i=1; i<vector.length; i++) {
+            temp = vector[i];
+            for (int j = i - 1; j >= 0; j--) {
+                if (vector[j] > temp) {
+                    vector[j + 1] = vector[j];
+                    vector[j] = temp;
+                } else {
+                    vector[j + 1] = temp;
+                    break;
+                }
+            }
+        }
+    }
+}
diff --git a/src/lab14_strategy/ex2/algorithms/SelectionSort.java b/src/lab14_strategy/ex2/algorithms/SelectionSort.java
new file mode 100644
index 0000000..6de1a47
--- /dev/null
+++ b/src/lab14_strategy/ex2/algorithms/SelectionSort.java
@@ -0,0 +1,22 @@
+package lab14_strategy.ex2.algorithms;
+
+import lab14_strategy.ex2.SortAlgorithm;
+
+public class SelectionSort implements SortAlgorithm {
+    @Override
+    public void sort(int[] vector) {
+        int temp, cursor = 0;
+        for (int i=0; i<vector.length; i++) {
+            temp = vector[i];
+            cursor = i;
+            for (int j = i; j < vector.length; j++) {
+                if (vector[j] < temp) {
+                    temp = vector[j];
+                    cursor = j;
+                }
+            }
+            vector[cursor] = vector[i];
+            vector[i] = temp;
+        }
+    }
+}