Sorting array of diffrent customers type? The main shoul have this : -Printing number of NormalCustomers
-Printing number of MemberCustomers
-Printing number of StudentCustomers
-Creat Mylibrary objecr from library class with valus enterd from keybord
-Creat number of subscribers (the number is enterd by the keyboard)and add them to the Mylibrary matrix
-Craeat number of ordinary customers(the number is enterd by keyboard) and add them to the my library matrix and same thing for the other to types
-Printing information after passing id
-Print info for all custimers
-Sort customers according to the bill value
-Sortcustimer according to their type
Note: i have created every thing i need in the classes exept the sortig according to type i just cant seem to get all of this together so i need help please