Use these lines of code to answer the following questions

1. protected void doGet(HttpServletRequest request, HttpServletResponse response) throws

2. ServletException, IOException {

3. if(request.getParameter("submit1")!=null)

4. {

5. String username = request.getParameter("name");

6. String responseLabel="servletResponse";

7. String responseLabelValue = "hello there "+name;

8. request.setAttribute(responseLabel,responseLabelValue);

9.

10. RequestDispatcher rd=request.getRequestDispatcher("/welcome.jsp");

11. rd.forward(request,response);

12. }

What class has this code?

In general, what is this code for?

What is the purpose of line 5?

What is the purpose of line 8?

What is a RequestDispatcher?