What is the difference between RequestDispatcher and sendRedirect?

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RequestDispatcher: server-side redirect with request and response objects. sendRedirect : Client-side redirect with new request and response objects.

2013-08-19, 2581👍, 0💬

Can you override jspInit() method? If yes, In which cases?
Can you override jspInit() method? If yes, In which cases? ye, we can. We do it usually when we need to intialize any members which are to be available for a servlet/JSP throughout its lifetime. 2013-08-16, 2437👍, 0💬

A JSP page, include.jsp, has a instance variable "int a", now this page is statically included in another JSP page, index.jsp, w
A JSP page, include.jsp, has a instance variable "int a", now this page is statically included in another JSP page, index.jsp, which has a instance variable "int a" declared. What happens when the index.jsp page is requested by the client? Compilation error, as two variables with same name can't be ... 2013-08-16, 2368👍, 0💬

How can my application get to know when a HttpSession is removed?
How can my application get to know when a HttpSession is removed? Define a Class HttpSessionNotifier which implements HttpSessionBindingListener and implement the functionality what you need in valueUnbound() method. Create an instance of that class and put that instance in HttpSession. 2013-08-20, 2258👍, 0💬

What is the difference between directive include and jsp include?
What is the difference between directive include and jsp include? <%@ include> : Used to include static resources during translation time. : Used to include dynamic content or static content during runtime. 2013-08-19, 2255👍, 0💬

Explain the life cycle of JSP?
Explain the life cycle of JSP? Any JSP page goes through 7 phases in its entire lifecycle Phase Name Description Page translation The page is parsed and a Java file containing the corresponding servlet is created. Page compilation The Java file is compiled. Load class The compiled class is loaded. C... 2013-08-15, 2227👍, 0💬

How does JSP handle runtime exceptions?
How does JSP handle runtime exceptions? Using errorPage attribute of page directive and also we need to specify isErrorPage=true if the current page is intended to URL redirecting of a JSP. 2013-08-20, 2193👍, 0💬

What happens when a page is statically included in another JSP page?
What happens when a page is statically included in another JSP page? An include directive tells the JSP engine to include the contents of another file (HTML, JSP, etc.) in the current page. This process of including a file is also called as static include. 2013-08-15, 2132👍, 0💬

Why do you use Perl?
Why do you use Perl? Perl is a powerful free interpreter. Perl is portable, flexible and easy to learn. 2013-08-21, 1805👍, 0💬

Which of these is a difference between C++ and Perl?
Which of these is a difference between C++ and Perl? Perl can have objects whose data cannot be accessed outside its class, but C++ cannot. Perl can use closures with unreachable private data as objects, and C++ doesn't support closures. Furthermore, C++ does support pointer arithmetic via `int *ip ... 2013-08-22, 1804👍, 0💬

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