Cmnt creer un customer book en vecteur java

Bonjour,


je veux avoir une idée en comment creer une application java d'un customer book en tant que vecteur of many entries. An entry can be one of two different types :
1. phone entry: that describes the cutomer phone information: customer id, name, city; zip code and phone number
2.Account entry: that describes the customer bank account information: customer id, balance and account n°.
the program should
- prompt the user to enter how many customers to store for each type of entry
-store them in customer_book vector in any order desired by the user
-update(phone number or account n°) any entry desired by the user( the user who decides to update or not)
-replace(or add) any updated entry desired by the user(the user who decides to rplace or add
-print all customers in the vector with the number of newly added customers to your vector

merciiii d'avance, i would appreciate your help