How to set path in java

we can set path in java to three types: 

1. Bin Directory

    If you are saving the java source file inside jdk/bin directory,then path is not required to be set because all the tools will be available in the current directory.

2. Temprory Path Set

•Copy the path of jdk/bin directory

•Open cmd

•Paste in cmd

Eg.

   setpath=C:\Program Files\Java\jdk1.8.0_20\bin.

3. Permanent Path Set

•Write click on my computer select properties and go to the advance system setting and select environmental variable.

•Click on new and put variable name=path

•copy the path of jdk/bin directory

•Paste in variable value

  Eg.

Variable name=path

variable value=C:\Program Files\Java\jdk1.8.0_20\bin