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

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.

Using generics results in more robust code and avoids ClassCastExceptions in your Java programs. This in-depth tutorial introduces you to generics and their types and methods.

Community driven content discussing all aspects of software development from DevOps to design patterns. Java 9 introduced JShell, a read-evaluate-print and loop (REPL) tool that greatly simplifies ...

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

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 { ...

How to run a JAR file in Windows 11/10 Since Java or JAR files can’t run on Windows on their own, you need to install the Java Framework or what is popularly called Java.