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.

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.