Use Java assertions to test your assumptions about program correctness and check them in your code.

Learn how to use Java annotations to associate metadata with classes, methods, and other application elements in your Java programs.

I want to learn how to program in Java on my Mac. What’s the best way to get started? Java programming is a great thing to learn – and your Mac is the perfect place to get started. Java is by ...

This post explains how to use loops in Java. Learn for loops, while loops, do while, break, and continue. All without going loopy!

Quickly learn how to use the Java ternary operator and see how this simple programming construct can help make your conditional logic, if statements and return statements clearer and more concise.

A preview feature in JDK 22 combines the strengths of virtual threads and parallel streams to improve optimization and performance. Here's how it works.

Which version of Java should you use in Linux? Learn how to easily switch between different versions with a tutorial from Jack Wallen.

The example code below shows how to use Java’s DirectoryStream in a method to list the files of a directory: public Set<String> listFilesUsingDirectoryStream(String dir) throws IOException { ...

Using Java securely on Windows 11/10 In case you need to use Java and you are running Java on your system, it is necessary to follow certain best practices to safeguard your computer. In this ...

This post explains how to use classes in Java to build objects and organize your code. Also learn: constructors, static methods, and more!