Java Environment Variables

Question

Can someone list the steps that are required to setup the environment variables in Windows OS?

Answer 1

In order to set up the environment variables, first, you need to download and install the latest JDK version. You can download this from here: https://goo.gl/Djcyjp.

You can look for the file according to your system configurations.

Once you are done, you can find the Java root folder here: C:\Program Files

Now to set the environment variables:

1. Right click on “My Computer” and go to the properties.

2. In System properties windows, click on the Advanced tab.

3. In this tab, click on” Environment Variables”.

4. Click on new to add new variable:

5. Now add the below variables one by one:

   1. JAVA_HOME : C:\Program Files\Java\jdk1.8.0_112

   2. JDK_HOME  : %JAVA_HOME%

   3. JRE_HOME  : %JAVA_HOME%\jre

   4. CLASSPATH : .;%JAVA_HOME%\lib;%JAVA_HOME%\jre\lib

   5. PATH      : your-unique-entries;%JAVA_HOME%\bin

6. Once done, click on “OK” and exit.

Answer 2

--- To set java path ---

There are two ways to set java path

A. Temporary

1. Open cmd
2. Write on cmd

javac

If java is not installed, then you will see message:

javac is not recognized as internal or external command, operable program or batch file.

1. write on cmd : set path=C:\Program Files\Java\jdk1.8.0_121\bin
2. then write on cmd : javac you will find path is set

B. Permanent

1. Go to "my computer" properties
2. Click on "Advanced system settings"
3. Click on "Environment variables"
4. Click on new tab of user variable
5. write path in variable name
6. copy the path of bin folder
7. paste path of bin folder in variable value
8. click OK button
9. permanent path is set now.