Learn how to use the Command pattern to encapsulate requests as objects that you can execute alone or in sequence in your Java programs.

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.

Java 21 preview feature commands To test out Java 21’s new instance main methods and unnamed classes, I created a simple Java file named BlackJackHelloWorld.java. The command to compile the code ...