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

Learn how to use synchronous and asynchronous callbacks in Java—including callbacks with lambda expressions, CompletableFuture, and more.

Benefits of using var in Java Developers and programmers have widely adopted the use of var in Java code because it provides a variety of practical benefits,: It simplifies syntax within method blocks ...

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

We discuss how to work with directories, sub-directories, and traverse them using Java and the DirectoryStream method. Learn more.

In fact, you don’t even have to code your Java into a file. JShell can execute lines of Java code directly on the command line. Java without a main method Historically, Java devs have had to code a ...