1) FIRST you have to check enable mode in your browser
2) Then you have to set in configuration setting in JAVA
Source: 
https://java.com
http://enable-javascript.com/
http://www.wikihow.com/
How to enable java plugin in webrowser
1) FIRST you have to check enable mode in your browser
2) Then you have to set in configuration setting in JAVA
Source:https://java.com
http://enable-javascript.com/
http://www.wikihow.com/