Request processor is a class which is responsible for
handling request and response it is provided by struts
framework if we want to customize our controller we can
make in this class.
Request Dispatcher is an interface which supports for
dispatching request from one page to another page in a
application(page may be a servlet file,JSP
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A request is when you ask, a command is when your demanding something
A letter is a written communication of information, any kind of information.An application is a written request (often a form) for consideration for or inclusion in something.
The difference between a formal letter and an email is proof of service. There is no proof of service for an email because the sender has no way to check to see if the letter was read. A formal letter can be sent with a return receipt request to make sure a person receives it. An email does not have a definite source unless the IP address of the sender is tracked. The formal letter can have a return address.
It will say that your request has been sended, followed by "Send request again" Usually it's not there, but if it's there you know he/she declined it.
How I can make