4.       Select Advanced tab

5.       Select Environment Variables

6.       Select Path under System Variables

7.       Click on Edit button

8.       In Variable value editor click on new button

9.       paste this at the start of the line

                       C:\Program Files\Java\jdk1.8.0_242\bin;

          [ TIP : Don’t forget to add ‘;’at the end ]

10.       Click Ok then Ok again

11.       Restart command prompt otherwise it won't see the change to the path variable

12.       Type java -version in command prompt