How to setup Environment Variable:
blog, I’m going to tell you how to setup System Variable for your java program.
It’s very important to do this because System Variable help to create and shape
the environment where a program runs. So let’s see how you can setup System
Variable. Follow the given instructions step by step:
1) Open Control Panel and go to System
and Security ->System. Here you will see on the left side of the screen an
option-> advanced system settings. Click on it.
2) Click on Environment Variables.
3) Under System variables find and click
on PATH variable and then click on edit option.
4) Now a new Edit System Variable window
will open. Modify the PATH value, i.e. Variable_value, by adding the value to your JDK bin path, e.g. “C:\Program
Files (x86)\Java\jdk1.8.0_31\bin” (This value may differ on your system) and
click on all ok’s. And if you do not have the item PATH, select add a new variable
and add PATH as the name and the location of the
JDK bin as the value.
5) You are done setting up your system variable
for your Java. In order to test it go to command prompt and type javac <filename.java>.
In my case it’s “HelloWorld.java” and press enter to compile the program. But before
that, please don’t forget to specify the path where your java file is stored.
6) Finally type java <filename>
and press enter to execute the program. You will see the desired output.