You are going to implement a command-line student management system.
Users can type four commands (case insensitive):
Create command to create new student record with 4 pieces of information separated by
comma: student ID (string), name (string), major (string), GPA (floating point)
o For example: create:105,Alice,EECS,2.54
Sort command to display all the student records in sorted order either by name or by GPA (the
sorting criteria is case insensitive)
o For example: sort:name
Search command to find a student record by the student ID
o For example: search:105