Here's how to make classes, fields, methods, constructors, and objects work together in your Java programs.

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 ...

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

In order to add such a feature, you need to understand how Java controls data. Developers use variables in Java to hold data, with all variables having a data type and a name.

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 ...

However, they must contain a main method that can be launched, a requirement enforced by the Java compiler. This new feature allows developers to write programs without explicit class declarations.