Servlet Account Creation and Redirecting Requests

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Questions and Answers

What is the purpose of the processRequest() method in Servlet programming?

To execute the doGet() and doPost() methods

What is the purpose of the sendRedirect() method in HttpServletResponse?

To redirect the client's request to a different Web page

What is the role of a Servlet in a web application?

To receive and process HTTP requests and send responses to clients

In a Servlet, what is the purpose of the doGet() method?

To handle HTTP GET requests Signup and view all the answers

What is the difference between the doPost() and doGet() methods in Servlet programming?

doGet() handles HTTP GET requests, while doPost() handles HTTP POST requests Signup and view all the answers

How do you redirect a client to a different Web page in a Servlet?

Using the sendRedirect() method of the HttpServletResponse Signup and view all the answers

What is the purpose of the HttpServletRequest object in a Servlet?

To receive and process HTTP request parameters Signup and view all the answers

What is the life cycle of a Servlet?

Servlets are created, initialized, serviced, and eventually destroyed Signup and view all the answers

What is the purpose of the RequestDispatcher in Java Servlet?

To handle the process of calling other servlets using the forward() or include() method. Signup and view all the answers

Which object is used to access data between servlets?

ServletRequest, HttpSession, and ServletContext objects. Signup and view all the answers

What happens when a problem occurs during servlet execution?

ServletExceptions or IOExceptions are thrown to indicate the problem. Signup and view all the answers

What is the purpose of the setAttribute(String name, Object value) method?

To add data to the request objects. Signup and view all the answers

How can a servlet call another servlet?

Using a RequestDispatcher. Signup and view all the answers

What is the purpose of the getAttribute(String name) method?

To access data from the request objects. Signup and view all the answers

What are the different types of objects used to share data between servlets?

ServletRequest, HttpSession, and ServletContext objects. Signup and view all the answers

What is the purpose of the forward() method in a RequestDispatcher?

To forward requests to another servlet or a JSP page. Signup and view all the answers

What is the purpose of a GET request in HTTP?

To retrieve information from a server, typically an HTML document or image. Signup and view all the answers

What is the corresponding HttpServlet method for a POST request?

doPost() Signup and view all the answers

What is the difference between a GET request and a HEAD request?

A GET request retrieves the entire resource, while a HEAD request retrieves only the header part of the resource. Signup and view all the answers

What is the purpose of the doPost() method in HttpServlet?

To accept the body information attached to the request and pass it to the thing at the requested URL. Signup and view all the answers

What is the purpose of an OPTIONS request in HTTP?

To ask for a list of the HTTP methods to which the thing at the requested URL can respond. Signup and view all the answers

What is the corresponding HttpServlet method for a PUT request?

doPut() Signup and view all the answers

What is the purpose of a DELETE request in HTTP?

To delete the thing (resource or file) at the requested URL. Signup and view all the answers

What is the difference between a GET request and a POST request?

A GET request retrieves information from a server, while a POST request sends data to a server. Signup and view all the answers

Study Notes