Advanced Programming

Please Read the questions carefully

I already make the most of the program but I need

This update to be on the final assignment, I upload 

my work to make these update

This is the questions:

Please continue Assignment with FileI/O and Exceptions . All your contacts information are saved into a text file Contacts.txt.

(1) Whenever you add a new contact, the new contact will be appended to the text file.

(2) Whenever you delete a contact, the delete contact is removed from the text file.

(3) Whenever you modify a contact, the contact in the text file is updated.

(4) Whenever you want to find a contact should be from the text file.