1600 PMP mock questions 1400 CAPM mock questions 800 SCJP 6 mock questions 600 OCAJP 7 mock questions 590 OCPJP 7 mock questions 556 SCWCD 5 mock questions 500 OCEJWCD 6 mock questions pdfDownload (java,struts, hibernet etc)

JSP interview questions

  • How do i include static files within a jsp page ? view answer
  • Image upload from JSP to DataBase ? view answer
  • How to Disable session in JSP page ? view answer
  • Q.How you do Session Management in JSP ? view answer
  • How can get the checked values from multiple check box checked ? or How to Handle multiple check box checked ? view answer
  • Q.How to send email through JSP/Java? view answer
  • Q.How to create and retrive a multiple selections list in jsp/servlet? view answer
  • Q.How to create a drop down list in jsp? view answer
  • Q. How to add and delete Cookie in jsp ? view answer
  • Q. How to Protect JSPs from direct access ? view answer
  • Q.How to upload an image from servlet/jsp into server from clients machine? view answer
  • Q.How do you delete a Cookie within a JSP? view answer
  • Q.How do you prevent the Creation of a Session in a JSP Page and why? view answer
  • Q.How does a servlet communicate with a JSP page? view answer
  • Q.which situation you use static include and dynamic include in jsp? view answer
  • Q.Difference between static include and dynamic include in JSP ? view answer
  • q.What's the Difference between Forward and Include? view answer
  • Q.How do you pass control from one JSP page to another? view answer
  • Q.How can I declare methods within my JSP page? view answer
  • Q.How can I implement a thread-safe JSP page? view answer
  • Q.How does JSP handle run-time exceptions? view answer
  • Q.How do I perform browser redirection from a JSP page? view answer
  • Q.How do I include static files within a JSP page? view answer
  • Q.How many JSP scripting elements and what are they? view answer
  • Q.What are the implicit objects? view answer
  • Q.How does a try statement determine which catch clause should be used to handle an exception? view answer
  • Q.How do I prevent the browser from caching my dynamic content? view answer
  • Q.Explain the life-cycle mehtods in JSP? view answer
  • Q.What are the different scope valiues for the ? view answer
  • What are implicit objects in JSP? view answer
  • What is a Expression,Declaration,Scriptlet in jsp? view answer
  • What is a Visible and Hidden Comment in jsp? view answer
  • Q. What is a Expression? view answer

!!! JSP interview questions !!!

What is a Expression,Declaration,Scriptlet in jsp?


SCJP 1.5/1.6 Exam Kit
SCWCD 1.5 Exam Kit

<b>expression </b>
An expression tag contains a scripting language expression that is evaluated, converted to a String, and inserted where the expression appears in the JSP file. Because the value of an expression is converted to a String, you can use an expression within text in a JSP file. Like
<%= emp.getName()%>
<%= (new java.util.Date()).toLocaleString() %>
You cannot use a semicolon to end an expression.

All the expression code is converting to servlet. All the expressions go to inside service() method of the convert servlet.


<b>Declaration</b>
A declaration declares one or more variables or methods for use later in the JSP source file.
A declaration must contain at least one complete declarative statement. You can declare any number of variables or methods within one declaration tag, as long as they are separated by semicolons. The declaration must be valid in the scripting language used in the JSP file.

<%! int i = 0; %>
<%! int a, b, c; %

You can add method to declaration part.
<%!
public String trimData(String str){
return str.trim();
}
%>

You can call the method within the jsp.

All the declaration code is converting to servlet. If you add method , the method is in convert servlet. All varibales are instance variable in the convert servlet.

<b>Scriptlet</b>
Scriptlet code is like java logic. you can declare varibales in the scriptlet and do the logic.
All the Scriptlet go to inside service() method of the convert servlet.

<%
int n=10;
for(int i=0;i<n;i++){
}
%>


Reviews and Comments


PMP, CAPM, PMI is a registered certification mark of the Project Management Institute, Inc

Copyright © www.techfaq360.com 2016


About US | Contact US | Privacy Policy | Terms and Conditions  | Website disclaimer  | Cancellation and Refund Policy  | Shipping & Delivery Policy