Write cohesive classes and methods Cohesive code does one thing very well. Although writing cohesive classes and methods is a simple concept, even experienced developers don’t follow it very well.

First, we create our class by writing “class” followed by the name of our class. In Java, it is considered best practice to camel case when choosing class names with the first word capitalized.

Learn how to write and validate unit tests with JUnit 5. This article shows you how to configure a Maven project for JUnit, write basic and parameterized unit tests, and use JUnit 5’s built-in ...

Sealed classes make Java an even more powerful and expressive language and set the stage for even more sophisticated techniques such as pattern matching, which we'll explore in a subsequent article. A ...

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 ...

According to the Java Enhancement Proposal 445: …these changes allow us to write Hello, World! with no access modifiers, no static modifiers, and no String[] parameter, so the introduction of these ...

This class is the only exception rendered by the RpmFile Java Package. I am convinced that, when writing a new Java package, the first thing you should do is build an exception wrapper for the package ...

Java is one of the most in-demand programming languages in the world and one of the two official programming languages used in Android development (the other being Kotlin). Developers familiar ...