If Java is not recognized as internal or external command, you need to make sure that the installation is not problematic and its path is recognized as system variables.

There are three simple ways to set JAVA_HOME in Windows. This tutorial shows you how to do it manually, from the command line and through the installer.

Disabling Java in OS X requires doing so for each user account; however, even terminal commands for doing this may be a bit impractical to use as a substitute.

Learn how to use the Command pattern to encapsulate requests as objects that you can execute alone or in sequence in your Java programs.

Many Java applications started from the command line take arguments to control their behavior. These arguments are available in the string array argument passed into the application’s static ...

Writing code to parse command line arguments is still necessary sometimes. When you need to examine command line arguments, see how and why you should use your open source Java toolkit and use ...

Here is a Java install tutorial if that prerequisite is yet to be met. If you are unsure as to whether the JDK is installed — or what version it is — simply open up a command prompt and type java ...

Want to know how to set up a Minecraft server with your friends? Here's all you need to know with step-by-step instructions.