The reason I really wanted to explain classes and objects in this Java beginner course, is that it will help you to better understand the nuts and bolts of Java and many other programming languages.

Classes and objects in Java must be initialized before they are used. You’ve previously learned that class fields are initialized to default values when classes are loaded, and that objects are ...

What is the single responsibility principle? The single responsibility principle in Java demands that a class serves a single, clear purpose. Any attempt to add peripheral functionality to a ...

As every Java developer knows, there are eight primitive types in Java: byte me = 5; short circuit = 10; int eresting = 30; long johns = 22; float sum = 41; double trouble = 99; char broiled = ‘a’; ...

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.