There is a reason why Java method modifiers exist. If you call public methods internally and don't understand why, your developers could face major class issues.

This post explains how to call a method in Java. Learn how to define methods, call them from other classes, and pass arguments!

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 ...

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.