diff --git a/bin/main/App.class b/bin/main/App.class
index 0cb56f63e50a57d8d781f466cc93ff2a9b414b92..cd4c249671243a8e3abee930563b1706eb4ecafb 100644
Binary files a/bin/main/App.class and b/bin/main/App.class differ
diff --git a/bin/main/Cohort.class b/bin/main/Cohort.class
index f4e40289fb272795aea45cf7df748b268a8ca359..b711444dcd8420005b3b0d49848c0bb4c5fefead 100644
Binary files a/bin/main/Cohort.class and b/bin/main/Cohort.class differ
diff --git a/src/main/java/App.java b/src/main/java/App.java
index dbae42036ba800df12680da4cf5081e7f4117624..2a7b8c6c3509705628155f9717104abc31f70701 100644
--- a/src/main/java/App.java
+++ b/src/main/java/App.java
@@ -1,5 +1,10 @@
 public class App {
   public static void main(String[] args){
-    // TODO add code
+    Student toto = new Student("Toto", "Totoro");
+    Grade toto_UEpro = new Grade(0.0);
+    Grade toto_Sport = new Grade(5.0);
+    toto.addResult("UE_pro", toto_UEpro);
+    toto.addResult("toto_Sport", toto_Sport);
+    toto.printResults();
   }
 }
diff --git a/src/main/java/Cohort.java b/src/main/java/Cohort.java
index b997326978841098c0235774f90bd70fd6c389c1..5bd0257ba5a10e293860de1bd1000aad74423123 100644
--- a/src/main/java/Cohort.java
+++ b/src/main/java/Cohort.java
@@ -24,7 +24,7 @@ public class Cohort {
    * @param student the student to be added to the cohort
    */
   public void addStudent(Student student){
-    // TODO : add code
+    this.students.add(student);
   }
 
   /**
@@ -32,8 +32,7 @@ public class Cohort {
    * @return the list of students of the cohort.
    */
   public List<Student> getStudents(){
-    // TODO : change code
-    return null;
+    return this.students;
   }
 
   /**
@@ -50,7 +49,13 @@ public class Cohort {
    */
   @Override
   public String toString() {
-    // TODO : change code
+    String textToReturn = "";
+    System.out.println(this.name + "\n");
+    for (Student student : this.students) {
+      System.out.println("\n");
+      student.printResults();
+    }
+
     return null;
   }
 }