Java Programming Question From (School)

  import java.util.InputMismatchException ; import java.util.Scanner ; // Author : Abhinav public class CourseSystem extends Log { public static void main ( String [] args) { CourseSystem ob = new CourseSystem () ; Scanner in = new Scanner ( System . in) ; ob . logging () ; } } class Admin_Feature { Scanner in = new Scanner ( System . in) ; void add_student (){ System . out . println ( "Enter name of Student" ) ; String name_student = in . nextLine () ; System . out . println ( "Enter Roll No of Student" ) ; long roll_no = in . nextLong () ; } void add_Course (){ System . out . println ( "Enter name of Course" ) ; String name_student = in . nextLine () ; System . out . println ( "Enter Teacher Name" ) ; String name_teacher = in . next () ; } } class Student_Feature { } class Course_Management { } class Student_Information { String...