# Apache Commons CLI - Environment Setup

In this chapter, we will learn about the local environment setup of Apache Commons CLI and how to set up the path of Commons CLI for Windows 2000/XP, Windows 95/98/ME etc. We will also understand about some popular java editors and how to download Commons CLI archive.

## Local Environment Setup

If you are still willing to set up your environment for Java programming language, then this chapter will guide you on how to download and set up Java on your machine. Please follow the steps mentioned below to set up the environment.

Follow the instructions to download Java and run the .exe to install Java on your machine. Once you have installed Java on your machine, you would need to set environment variables to point to correct installation directories.

## Path for Windows 2000/XP

We are assuming that you have installed Java in c:\Program Files\java\jdk directory.

• Right-click on 'My Computer' and select 'Properties'.

• Click on the 'Environment variables' button under the 'Advanced' tab.

• Now, alter the 'Path' variable, so that it also contains the path to the Java executable. Example, if the path is currently set to 'C:\WINDOWS\SYSTEM32', then change your path to read 'C:\WINDOWS\SYSTEM32;c:\Program Files\java\jdk\bin'.

## Path for Windows 95/98/ME

We are assuming that you have installed Java in c:\Program Files\java\jdk directory.

• Edit the 'C:\autoexec.bat' file and add the following line at the end − 'SET PATH=%PATH%;C:\Program Files\java\jdk\bin'.

## Path for Linux, UNIX, Solaris, FreeBSD

Environment variable PATH should be set to point, where the Java binaries have been installed. Refer to your shell documentation, if you have trouble doing this.