How to install Apache Tomcat and set Environment variable path

Download and install jre and jdk

From here: http://java.com/en/download/index.jsp
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Download and install Apache Tomcat by give must proper port no as 8080 or as you like no
and username and password while installing

from here:   http://tomcat.apache.org/download-70.cgi
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After Completion of installation

you must have to set environment for Apache Tomcate

STEP 1:
                 Right click on MY COMPUTER icon
              
                Click on PROPERTIES

                select ADVANCE TAB

                Click on Environment variable
STEP 2:
                Click on NEW in System variable  tab
             
            
                in VARIABLE NAME  : CLASSPATH
                    VARIABLE VALUE : C:\Program Files\Apache Software Foundation\
                                                            Tomcat 7.0\lib\servlet-api.jar;


                as per shown in below image.

            

     

      after that set click on NEW button and set JAVA_HOME as per shown in below image


                  in VARIABLE NAME  : JAVA_HOME
                    VARIABLE VALUE :C:\Program Files\Java\jdk1.7.0_51

                         

          after that set click on NEW button and set PATH as per shown in below image


                  in VARIABLE NAME  : PATH
                    VARIABLE VALUE :   C:\Program Files\Java\jdk1.7.0_51\bin;



           

                           


   now go to cmd and check java and javac command that works properly or not .
   now start Apache tomcat Service and open browser and
   goto to localhost

   enjoy servlet and jsp programm........

    Thanks you.........!!!!!