How to execute Java file in command prompt

How to execute Java file in command prompt

• Install java JDK from Oracle (any latest )
• Open cmd Prompt ( ie ., In start >Search Box > Type "cmd"    (without quotes)
• In Command Prompt Type   >Java -version           (You'll get the version number)
• In Cmd prompt Type > set path=Path where Jdk is installed\bin;

Example : >set path=C:\Program Files\Java\jdk1.6.0_37\bin;

•  Now navigate to the file structure in Command prompt where the java file is residing 
• Type  >javac file_name.java
• Type  >java file_name