public void listMenu()
	{
		do
		{
			System.out.println();
			System.out.println("---------------------------");
			System.out.println("1. All students");
			System.out.println("2. A given major");
			System.out.println("3. GPA above a certain value");
			System.out.println("4. GPA below a certain value");
			System.out.println("5. Go back to the main menu");
			System.out.print("Selection: ");

			selection = kb.next().charAt(0);

			switch (selection) 
			{
			case '1':
				menuDisplayStudents();
				pause();
				break;
			case '2':
				menuDisplayForMajor();
				pause();
				break;
			case '3':
				menuAboveGPA();
				pause();
				break;
			case '4':
				menuBelowGPA();
				pause();
				break;
			case '5':
				break;

			default:

				System.out.println("Invalid Selection");
				pause();

			}// end switch

		} while (selection != '5');

	}