Installing TOMCAT & Configuring:
Install the tomcat from here :select the required version from download.
Setting the environment variable:
System Properties->Advanced->Environment Variables
Variable Name : CATALINA_HOME
Variable Value: C:\TOMCAT 7.0.10 (your tomcat directory)
Check your port number in Tomcat--->conf--->server.xml
<Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" />Please note that your oracle is having a default port number 8080. Make sure no conflicts are there
Start the server(Go to the bin folder of tomcat and use startup.bat in windows and startup.sh for linux)
Then try the url in any web browser :
http://localhost:portNumber/If you get the tomcat homepage your tomcat is properly configured.
Deploying application war File :
Step 1:stop tomcat Step 2:move your war into "[tomcat install dir]/webapps" Step 3:start tomcat Then try to access your web application as explained in the first answer in any web browser