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/
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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/