public static int createStudent() {
		System.out.println("=== Creation of a student ===");
		Scanner scId = new Scanner(System.in);
		System.out.print("Give a name: ");
		String name = "";
		while (name.equals("")) {
			Scanner scName = new Scanner(System.in);
			name = scName.nextLine();
		}
		System.out.print("Give a first name: ");
		String forename = "";
		while (forename.equals("")) {
			Scanner scForename = new Scanner(System.in);
			forename = scForename.nextLine();
		}
		System.out.print("Give an id: ");
		try {
			int id = scId.nextInt();
			Student student = new Student(name, forename, id);

			// We check if the student doesn't still exist in the Student List.
			boolean exist = false;
			for (int i = 0; i < sList.size(); i++) {
				if (sList.get(i).equals(student)) {
					exist = true;
				}
			}

			if (!exist) {
				sList.add(student);
				System.out.println("Student " + student.displayNames()
						+ " created.");
			} else {
				System.out.println("This student still exist !");
			}

			System.out.println();
		} catch (InputMismatchException e) {
			System.out.println("Enter a valid number !");
			return 0;
		}
		return 1;
	}