public static void createProfessor() {
		System.out.println("=== Creation of a professor ===");
		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();
		}
		Professor prof = new Professor(name, forename);

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

		if (!exist) {
			profList.add(prof);
			System.out.println("Professor " + prof + " created.");
		} else {
			System.out.println("This professor still exist !");
		}
		System.out.println();
	}