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.

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

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 ...

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

In Java, printf is recommended as a replacement for calls to the print or println methods. How do you format output with Java printf? To format text based output with the Java printf method, follow ...