a2zinterviews

1.	What are the life cycle methods of JSP?
	Life cycle methods of JSP are jspInit(): The container calls the jspInit() to initialize the servlet instance. it is called before any other method and is called only once for a servlet instance. jspService(): The container calls the _jspservice() for each request and it passes the request and the response objects. jspService() method can't be overridden. jspDestroy(): The container calls this when its instance is about to be destroyed. The jspInit() and jspDestroy() methods can be overridden within a JSP page.
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2.	What is JSP?
	Java Server Pages (JSP) technology is the Java platform technology for delivering dynamic content to web clients in a portable, secure and well defined way. The Java Server Pages specification extends the Java Servlet API to provide web application developers.
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3.	What is the role of JSP in MVC model?
	JSP is mostly to develop the user interface. It plays the role of view in the MVC model.
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4.	What is a servlet?
	Java servlet are server side components that provides a powerful mechanism for developing server side of web application. Earlier CGI was developed to provide server side capabilities to the web applications. Although CGI played a major role in the explosion of the Internet, its performance, scalability and reusability issues make it less than optimal solutions. Java Servlets changes all that. Built from ground up using Sun's write once run anywhere technology java servlets provide excellent framework for server side processing.
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