Monday, May 17, 2010

TOP JSP FAQS from Java2Share.com

JSP FAQs
Check answers from:
www.Java2Share.com
1. What is JSP ? Describe its concept.
2 . Explain the benefits of JSP?
3. Is JSP technology extensible?
4 .Can we implement an interface in a JSP?
5 What are the advantages of JSP over Servlet?
6. Differences between Servlets and JSP?
7 . Explain the differences between ASP and JSP?
8 . Can I stop JSP execution while in the midst of processing a request?
9. How to Protect JSPs from direct access ?
10. Explain JSP API ?
11. What are the lifecycle phases of a JSP?
12. Explain the life-cycle mehtods in JSP?
13. Difference between _jspService() and other life cycle methods.
14 What is the jspInit() method?
15. What is the _jspService() method?
16. What is the jspDestroy() method?
17. What JSP lifecycle methods can I override?
18. How can I override the jspInit() and jspDestroy() methods within a JSP page?
19 . Explain about translation and execution of Java Server pages?
20 . Why is
_jspService() method starting with an '_' while other life cycle methods do not?
21. How to pre-compile JSP?
22. The benefits of pre-compiling a JSP page?
23.How many JSP scripting elements and explain them?
24. What is a Scriptlet?
25. What is a JSP declarative?
26. How can I declare methods within my JSP page?
27. What is the difference b/w variable declared inside a declaration and variable declared in scriplet ?
28.What are the three kinds of comments in JSP and what's the difference between them?
29. What is output comment?
30. What is a Hidden Comment?
31. How is scripting disabled?
32. What are the JSP implicit objects?
33. How does JSP handle run-time exceptions?
34. How can I implement a thread-safe JSP page? What are the advantages and Disadvantages of using it?
35. What is the difference between ServletContext and PageContext?
36 . Is there a way to reference the "this" variable within a JSP page?
37 . Can you make use of a ServletOutputStream object from within a JSP page?
38 .What is the page directive is used to prevent a JSP page from automatically creating a session?
39. What's a better approach for enabling thread-safe servlets and JSPs? SingleThreadModel Interface or Synchronization?
40. What are various attributes Of Page Directive ?
41 . Explain about autoflush?
42. How do you restrict page errors display in the JSP page?
43. What are the different scopes available fos JSPs ?
44. when do use application scope?
45. What are the different scope valiues for the ?
46. How do I use a scriptlet to initialize a newly instantiated bean?
47 . Can a JSP page instantiate a serialized bean?
48.How do we include static files within a jsp page ?
49.In JSPs how many ways are possible to perform inclusion?
50.In which situation we can use static include and dynamic include in JSPs ?
51.Differences between static include directive and include act
ion ?

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