The entry point of a standalone Java application is the main method or function. In the age of Servlets and JSPs, Java’s main function took a backseat to these technologies that were initialized with ...

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 ...

Before Java 8, a Java application consisted of at least one class that declared a main() entry-point method. Starting with Java 8, you can accomplish this task with an interface.

The --main=hello option tells the linker to use the main method in the hello class when linking. Leaving off this option results in a link error, “undefined reference to main”, which, to the ...

Get a deep dive into using method references in your Java programs, including stream operations, event listeners, and constructors and factories.

JEP 512 enhances Java with Compact Source Files and Instance Main Methods in JDK 25, easing the learning curve for beginners. Key features include simplified syntax, automatic imports, and a new ...

This post explains how to call a method in Java. Learn how to define methods, call them from other classes, and pass arguments!

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