Java
The web application is working in Three-Layered model. A web browser or the user interface is the first layer. The dynamic content generation technology tool such as
Java servlets (JSP) or Active Server Pages (ASP) is the second layer and the database is the third layer which containing content and customer data (e.g., usernames and pass
Words, social security numbers and credit card details).
Over the internet when user triggered through the browser to the web application server. To perform the requested task and bringing information from the database the web application accesses the databases servers. Then the web app presents the information to the user over the browser.
