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How to print a text file in java script?
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Users Count
How to count the number of users who logged on to a website?
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Java Web application project Issue
hi,Actually i m doing my project on java, its a web application project.i am generating the reports from jdbc. but the requirement is it should has to print in the form of MS-Excel. i used the poi api but i m not getting it out. can u help me please....
lakshmi.sfware
- Apr 20th, 2010
Mr. Vijay. I didn't undestand your query properly. I am assuming your problem like this you want your output in the form of excel sheets I mean like a table. Yes it is possibleFirst of ...
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JSP Fragment
What is JSP Fragment?
shamli85
- Apr 2nd, 2010
JSP Fragments is a new feature of JSP 2.0 that allows page authors to create custom action fragments that can be invoked. It allows a portion of JSP code to be encapsulated into a Java object that can...
atmarammuduli
- Jul 30th, 2008
Fragments Refer to Portal Technology.Where The Portal Server Takes the JSF fragments from different portlets (Sources) and integrate in a page(portal).You can refer igoogle/my.yahoo.com for see it hap...
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Java Server Pages specification includes (Multiple choice)
Skill/Topic: Programming ConstructsA) Script language declarations, scriplets and expressions. B) JSP standard actions. C) JSP standard directivesD) A portable tag extension mechanism.
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How can you store ArrayList values in a session obj? Explain.
ishar.Gsingh
- Dec 20th, 2009
HttpSession session = request.getSession();List list = new ArrayList();list.add("Hello World");list.add("Perfect World");session.setAttribute("listObject", list);
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When we deploy an application into a server, to which servlets these JSP will convert into?
ishar.Gsingh
- Dec 20th, 2009
When you deploy an application the JSP's are never converted to servlets until first request. When first request comes in, for example my.jsp will be converted to my_jsp.java then my_jsp...
subhas2008
- Jul 28th, 2008
JSP?is ?converted to a servlet called??translated servlets which contains _JspInit(), _JspService and _JspDestroy() methods.
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What is the difference between jsp and servlet life cycles?
ishar.Gsingh
- Dec 20th, 2009
Amendment to the Neha's Answer:Jsp's are never converted to the .java source code until the first request asks it. On ther hands you can pre initiate the servlets
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How to disable browser "Back" and "Forward" button from a JSP page?
ishar.Gsingh
- Dec 20th, 2009
JSP runs on server. You can get some information about the server but not about the client. You probably can do this with javascript.
batswon
- Jul 14th, 2008
Buttons are not disabled but when you click on them action is not performedif you have no common .js file for all pages include follwing in all jsp pageswindow.history.forward(1);
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Why there is no constructor in Servlet?
Servlet is Java class. Then why there is no constructor in Servlet? Can we write the constructor in Servlet
jontyjonty
- Sep 10th, 2009
We can have parameterized constructors for servlet. Explanation:Consider this example class One implements Servlet{}-> now One is a java class having all the special features of a servlet.-> so just ...
san.manish
- Apr 8th, 2009
A servlet is just like an applet in the respect that it has an init() method that acts as a constrcutor. Since the servlet environment takes care of instantiating the servlet, an explicit constructor ...
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HiWhat is the structure of MVC1?What is the structure of MVC2?Clearly i want to know jsp,servlets...which acts as view,controller,model in both
latika.singhal
- Sep 10th, 2009
MVC I:
1) Client sends a request to the JSP (View)
2) JSPs interact with the JAVA Bean
3) JAVA Bean communicates with the Enterprise Servers/ DB Servers.Madhavi
- May 30th, 2007
MVC1---------JSP acts as both VIEW and ControllerMVC2---------JSP acts as VIEW and Servlet acts as Controller
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Can we implement the printable interface in jsp? if yes, how?
itsvenuhere
- Jul 28th, 2009
We cannot implement the interfaces directly in JSP.We can implement the Interfaces in Java by using implements keyword.
jaiswal.pankaj10
- Apr 8th, 2006
Very easy, just define a class that implement the Printable interface and then import that class and use the print() method.public class myPrintable implement Printable {public int print(Graphics gr, PageFormat pf, int pageIndex) throws Exception { super(gr, pf, pageIndex);}
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State true or false -- We can implement an interface in JSP
Skill/Topic: Programming ConstructsA) TrueB) False
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What are the implicit objects available in JSP 3.0
ahamza59
- Jun 6th, 2009
From my knowledge, there is no JSP 3.0. The final version released of JavaServer Pages Specification is Ver.2.1, that leverages the Servlet 2.5 specification for its web semantics. The implicit object...
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How do I have the JSP-generated servlet subclass my own custom servlet class, instead of the default?
One should be very careful when having JSP pages extend custom servlet classes as opposed to the default one generated by the JSP engine. In doing so, you may lose out on any advanced optimization that may be provided by the JSPengine. In any case, your new superclass has to fulfill the contract with the JSPngine by: Implementing the HttpJspPage interface, if the protocol used is HTTP, or implementing...
ramesh.sukka
- Apr 16th, 2009
you cannot control the naming convention of JSP generated servlet. Web container should take care of t. so ideally you cannot have custome name for JSP generated servlet.Regards,Ramesh Sukka
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<%
PrintWriter print = request.getWriter();
print.println("Welcome");
>%
Suppose you access this JSP file, Find out your answer.
a) A blank page will be displayed.
b) A page with the text Welcome is displayed
c) An exception will be thrown because the implicit out object is not used
d) An exception will be thrown because PrintWriter can be used in servlets only
">Write the following code for a JSP page:<%@ page language = "java" %> <%PrintWriter print = request.getWriter();print.println("Welcome");>%Suppose you access this JSP file, Find out your answer.a) A blank page will be displayed.b) A page with the text Welcome is displayedc) An exception will be thrown because the implicit out object is not usedd) An exception will be thrown because PrintWriter can be used in servlets only
A page with the text Welcome is displayed
spring
- Apr 6th, 2009
This code will print "Welcome"request does't have any getWriter() defined, only response has.<%@ page language = "java" %><%java.io.PrintWriter print = response.getWriter();print.println("Welcome");%>
bharaniprasanth
- Mar 11th, 2008
I think we have to use Jsp Writer as a part of specification ...PrintWriter is for servlets exclusively..
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The ________ listeners are notified when session objects are created, invalidated, or timed out.
Skill/Topic: JSP Thread ModelA) Session AttributeB) Servlet context attributeC) Session ListenersD) Servlet context listeners
Nag
- Dec 22nd, 2006
Session Listeners
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How we will provide security in jsp's & servlets ?
talktoudaykumar
- Mar 2nd, 2009
One of the reasons people will use servlets is security.We can provide security in servlets in two ways1.Declaratively2.ProgramaticallyUsing this security features we can guarantee these security it...
kiran.kandem
- Nov 16th, 2008
We can provide security in JSP's and Servlets keeping the source files in WEB-INF folder.
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State true or false -- ServletContext class gives information about the Request?
Skill/Topic: Programming ConstructsA) TrueB) FalseExplanation: ServletContext: Gives the information about the container. PageContext: Gives the information about the Request
nainaaltaf
- Jan 28th, 2009
False. ServletContext give info abt container while pageContext give info abt request
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The session tracking in the JSP can be done by :- 1. URL rewriting 2. Cookies 3. User-Authorization 4. Hidden Files
Skill/Topic: Session HandlingA) 1,3,4 only B) 2,3,4 only C) 1,2,4 only D) 1,2,3,4
aquakolkata
- Jan 6th, 2009
1)URL Rewriting2)Cookies3)Hidden form field4)Setting session id using response.encodeURL()...etc...
JSP Interview Questions
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