Software Applications Programming Errors and solutions.

WHAT IS JAVA SERVLETS ? An HTTP servlet can generate an HTML page, either when the servlet is accessed explicitly by name, by following a hypertext link, or as the result of a form submission. An HTTP servlet can also be embedded inside an HTML page, where it functions as a server-side include. Servlets can be chained together to produce complex effects--one common use of this technique is for filtering content. Finally, snippets of servlet code can be embedded directly in HTML pages using a new technique called JavaServer Pages. Servlets : A servlet is dynamically loaded module that services requests from Web server, by another service called response. Servlet is efficient as it is initialized only once when the web server loads it. Servlets are efficient, persistent, portable, robust, extensible, and secure, and they have facility to embed JavaScript. JDBC :  The JDBC is a pure JAVA API used to execute SQL statements. It provides the classes and interfaces that can b...