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If the data being submitted is sensitive, then it's always preferred to use _____________ method
Skill/Topic: ServletsA) doPostB) doGetC) serviceD) None of the aboveExplanation: because the elements don't shown up in URL.
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The _________interface provides information to servlets regarding the environment in which they are running.
Skill/Topic: ServletsA) ServletContextExplanation: It also provides standard way for servlets to write events to a log file.
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Which of the following statements is true about the GenericServlet. (Multiple choice)
Skill/Topic: ServletsA) GenericServlet is for servlets that might not use HTTP, like for instance FTP service.B) As of only Http is implemented completely in GenericServlet. C) The GenericServlet has a service() method that gets called when a client request is made. D) GenericServlet is called by both incoming requests and the HTTP requests are given to the servlet as they are.
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State true or false: - Can the constructor be used instead of init () to initialize a Servlet
Skill/Topic: ServletsA) TrueB) FalseExplanation: But you shouldn’t. The original reason for init() was that ancient versions of Java couldn’t dynamically invoke constructors with arguments, so there was no way to give the constructor a ServletConfig. That no longer applies, but Servlet containers still will only call your no-arg constructor. So you won’t have access to a ServletConfig or ServletContext.
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Which of the following statements correctly define the use of Servlet over CGI (Multiple choice)
Skill/Topic: ServletsA) Servlet provide a way to generate dynamic documents that is both easier to write and faster to run. B) Servlet also address the problem of doing server-side programming with platform-specific APIsC) They are developed with the Java Servlet API, a standard Java extensionD) They have slower response
skumaran_15
- Dec 14th, 2005
CGI has slower response, as create separate instances for every request it recieves.
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Currently we are working on a project which includes charts to be displayed using JFreeCharts.we have two JSP\'s for displaying Pie and another one for Bar chart.So how do i get two graphs in a single page which is in two different JSP\'s.
grkapadia
- Jan 2nd, 2006
Create a single JSP and use iframe to display multiple charts from different jsp files.For eg. <iframe src=http://some.com/jsp/pieChart.jsp?<parameters (if any)> width=430 height=245 fra...
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I have written a jsp program with database connectivity.When i am starting the j2ee server after copying the jsp file in public_html folder and invoking my jsp page, it is giving the error as No suitable driver.Whats the problem with my code? Here is my codeJSP JDBC Example
vmshenoy
- Mar 9th, 2006
see i think u might have not included the driver .I f u want to use MICROSOFT ACCESS DBthen first of all make a table in the db.(the table should match the name u hvae written in coding i.e select * f...
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What are the implicit variables in jsp
kn.2006@hotmail.com
- Mar 23rd, 2006
Implicit objects available in JSP are:Out Request ResponseSession Application Config Page PageContext
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Can we override jspInit()
sekhar_ch1
- Mar 1st, 2006
Sure we can override jspinit() and jspdestroy().But we can not override _jspService().Since what ever we wrote code in the JSP will be placed in _jspService() of generated servlet class(from JSP) .mea...
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What is the scope for page and session
kn.2006@hotmail.com
- Mar 23rd, 2006
Scope can have either of page | request | session | application values.The default is page.scope=page==>You can use the Bean within the JSP page with the element or any of the page's static include f...
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If i am logged into a site say (abc.com) then my session will be created. and in the middle i type the same URL in the same browser window. So that means my new session will be created or the it will return me the existing session. and how it has been done?
guvvalakishorekumar
- Mar 30th, 2006
<html><head><title>current page</title></head><body><%session=request.getSession(true);%><%Integer acesscount=(Integer)session.getAttribute("acesscount");%...
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return false;
}
else
{
return true;
document.cancel_complaints.submit();
}
}
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in case of one row(i.e only one record i.e only one checkbox) the value of lenvar is undefined and if there are more than one row the value of lenvar comes= (no of checkboxes)
i am unable to understand why there is problwm in counting in total no of checkboxes.
if somebody has solution then plz tell me.
thanks in advance">I have a cancel_complaints page in ASP in which list of complaints r coming (2 records come at a time means page navigation).In that page some information is coming in table and i have given a checkbox in one Table column according to records in database table rows are generated.That is multiple checkbox are generated with same name.I have put a validation that if user has selecetd none of checkbox alert message comes.Problem is that when there are more than one row validation is going fine but when only one row remains validation does not goes fine.Below i am giving javascript function that i have used for validation.----------function------------function validatefield(){ var j=0; var lenvar=document.cancel_complaints.chksel.length; //alert(eval(lenvar)); for (i = 0; i < lenvar; i++) {if(document.cancel_complaints.chksel[i].checked) { j=j+1; } } if(j==0) { alert("Please select atleast one checkbox"); return false; } else { return true; document.cancel_complaints.submit(); }}----------in case of one row(i.e only one record i.e only one checkbox) the value of lenvar is undefined and if there are more than one row the value of lenvar comes= (no of checkboxes)i am unable to understand why there is problwm in counting in total no of checkboxes.if somebody has solution then plz tell me.thanks in advance
rajamuna
- Jul 26th, 2006
Try the folowing Javascript Function :---------------------function validatefield(){var j=0;var lenvar = 0;var lenEle = document.cancel_complaints.elements.length;for (i = 0; i < lenEle; i++){if((d...
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JSP Interview Questions
Ans