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.

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