Adress Book – console application written in C++/OOP aswell. Main goal was to practice OOP on adress book created earlier by procedural programming. Features are very similar to Budget App. Firstly user is registered, so there is a possibility to log into program. Then user can freely create a recipient with features like – name, surname, e-mail, phone number, home adress.

A very crucial utilities have been added – while register, every user has an own ID, which helps to identify whose recipient belongs to logged user. While deleting or modifying, a temporary file is created which at the end is deleted to save some RAM memory, but it costs of disk’s lifespan by creating more operations