Java interfaces are different from classes, and it’s important to know how to use their special properties in your Java programs. This tutorial introduces the difference between classes and interfaces ...

If you're not familiar with object-oriented programming, some of the concepts can be hard to understand, especially if you're a longtime procedural language programmer. Follow along as we take a look ...

Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs. Abstract classes and ...

In this post, we will learn how to call a method in Java. This is a useful “chunk” of code that you can call from anywhere else in your program, thus preventing you from needing to write out the same ...

This repository is part of the Developer Kickstart module 3 curriculum at Cloud Code Academy. It's designed to help beginner Salesforce developers learn and practice the principles of Object-Oriented ...