Ever wonder why Java's const keyword is unimplemented? More specifically, why do we mark global constants in Java with both the static and final keywords? Why are Java constants static and final? The ...

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 ...

One of the features that make Java so powerful, is its object-oriented structure. This means that Java uses classes and objects to create more scalable, modular, and organized code. This can be a ...

Imagine you are an expert object-oriented Java developer who meticulously crafts code the way an artist cares for their masterpiece. You believe clean code is an absolute necessity. Classes with clear ...

The release of Java SE 15 in Sept 2020 will introduce "sealed classes" (JEP 360) as a preview feature. A sealed class is a class or interface which restricts which other classes or interfaces may ...

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 ...