The java command starts a Java application. It does this by starting the Java Virtual Machine (JVM), loading the specified class, and calling that class's main () method.

Oct 9, 2025 · java -version: Displays the version of the Java Runtime Environment (JRE) that is installed on your computer. java -help: Displays a list of all of the Java commands.

We recommend reading this tutorial, in the sequence listed in the left menu. Java is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as …

Sep 21, 2025 · We summarize the most commonly used Java language features and APIs in the textbook. Hello, World. Editing, compiling, and executing. Built-in data types. Declaration and …

Creating a project: Creating a frame, or applet, or ...

Nov 12, 2025 · Java commands are the tools that allow developers to compile, run, debug, and manage Java programs. This blog aims to provide a detailed overview of Java commands, covering …

Sep 27, 2022 · In the following, you will find a list of the most important Java commands that you can use when programming. You will need to know the basic Java commands at the beginning when you …