Develop an application in Java that maintains a list of Course objects. The class Course has a course number like ICS201 and a list of Student objects. The class Student has id number and letter grade like A+.

Your menu has the following commands:

1.List the courses and the number of students sorted by course number.

2.List students and their grades in a course (take the course number from user).

3.List courses taken by a student (take the id number from user).

Use the following data to test your application:

ICS201

201511110 A

201522220 B+

201512120 D+

ICS102

201533330 C

201522220 A

201512220 D+

MATH102

201511110 A+

201512120 D+