Creating Useful Projects with Java

One practical way to combine everything you've learned is to build a simple address book app. You'll use variables, classes, arrays or ArrayLists, and control structures.

Steps to Build

1. Create a Contact class with fields for name, phone, and email.
2. Use an ArrayList<Contact> to store multiple contacts.
3. Add methods to add, remove, and display contacts.
4. Use loops and conditionals to interact with users.

public class Contact {
  String name, phone, email;
  // constructor and methods here
}

This project mirrors what real developers do when making productivity tools or managing information.

Expanding on the Idea

• Add search features.
• Allow saving and loading contacts from a file.