User can add, edit, display, search, delete, exit
Six of the function : Add Record (Queue) Edit Record (Array) Display Record (Queue) Sort Record (Heap Sort) Search Record (Jump Search) Delete Record (Array) Exit
Add - Tracking number, Receiver, Address.
Edit - Tracking number, Receiver, Address.
Display - display the record.
Sort - Sorting Tracking number.
Search - Searching Tracking number at which position.
Delete - Tracking number.
Exit - Once exit saves all the records then modified.