Contacts (Kotlin)

Challenging

296 completions

~ 30 hours

4.0

You will learn the essential basics of object-oriented programming: encapsulation, inheritance and polymorphism. Inheritance will allow you to write code that can perform the same process but for different objects. Polymorphism helps to initiate different processes for different objects by using the same method. You’ll also learn to prevent other users of your code to modify the variables using encapsulation.

Provided by

JetBrains Academy

About

Here is something you probably use regularly: contacts. In this project, you will write a program to create contacts (like on the mobile phone) and search for people or organizations by name.

Graduate project

This project covers the core topics of the Kotlin Core course, making it sufficiently challenging to be a proud addition to your portfolio.

At least one graduate project is required to complete the course.

What you'll learn

Once you choose a project, we'll provide you with a study plan that includes all the necessary topics from your course to get it built. Here’s what awaits you:

Using classes, create your first contact with a name, last name and phone number.

Working with encapsulation and regular expressions, create a menu that will allow to add and edit contacts.

With the help of inheritance mechanism, add the ability to specify details in your contacts (for example, gender) and to create contacts and addresses of organizations.

Get familiar with polymorphism and built-in functions: fix your code and make it possible to search for contacts.

Reviews

Jobby

5 months ago

4.3

I learned about modular polymorphism and manually managing a small database.

Iurii Letser

7 months ago

2.3

Promising at the beginning but disaster at the end. Stage 4 is rather about switching between loops than actual programming. Annoying.

Charles Perry

8 months ago

4.3

I have learned a use for Enums, file management, how to better modularize my code.

4.0

Learners who completed this project within the Kotlin Core course rated it as follows:

Usefulness

4.4

Fun

4.0

Clarity

3.6