What makes the web browser to start when running a project which contains a jsp or html page in an IDE?

Apache Tomcat is responsible for make the web browser running for web applications . or jsp html page to run on browser.

i want start runing in america 

web.xml file contains a jsp or html page in IDE and

Will start with what is configured in webconfig.xml

The IP address provided in the java server connection program makes web browser to start .

it's a html code which run initially,fetching the data from jsp

your local's name ,, followed by port number for the application server ,, followed by the web application's name ,, followed by the SERVLET name ,, after that the servlet will map you to the desired JSP file ,,,

i we run servlet or jsp program then by default google chrome browser is run