public static void updateCourseMenu()
{
Console.Clear();
Console.WriteLine("Please input the course name:");
String courseName = Console.ReadLine();
Console.WriteLine("Please input the course credit:");
int credit = InputValidation.checkCredit(Console.ReadLine());
Console.WriteLine("Please input the course max student:");
int maxStudent = InputValidation.checkCredit(Console.ReadLine());
school.updateCourse(courseName, credit, maxStudent);
Console.WriteLine("Press any key to continue");
Console.ReadLine();
}