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What are the steps required in adding a JSP Tag Libraries?
1. Create a TLD file and configure the required class Information.2. Create the Java Implementation Source extending the JSP Tag Lib Class (TagSupport).3. Compile and package it as loosed class file or as a jar under lib folder in Web Archive File for Class loading.4. Place the TLD file under the WEB-INF folder.5. Add reference to the tag library in the web.xml file.
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What are the advantages using servlets than using CGI?
Servlets provide a way to generate dynamic documents that is both easier to write and faster to run. It is efficient, convenient, powerful, portable, secure and inexpensive. Servlets also address the problem of doing server-side programming with platform-specific APIs. They are developed with Java Servlet API, a standard Java extension.
himanshuspatel
- Aug 1st, 2006
CGI scripts are complex. Servelts have serveral advantage over CGI like servlets are platform independent. and we can take advantage of all java features in servlets. Multithreading su...
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Fill with the appropriate set -- The browsers are only required to accept________ cookies per site, __________ total per user , and they can limit each cookie's size to __________.
Skill/Topic: JSP Life CycleA) 20, 300, 4096 bytes (4K)B) 300,20, 4096 bytes (4K)C) 30,200, 4096 bytes (4K)D) 200,39, 4096 bytes (4K)
panchaksharirc
- Jul 27th, 2006
The option seems to be wrong, each cookie size is limited to just 4 bytes
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The______________ listeners are notified when attributes are added to, removed from, or replaced in the Servlet context.
Skill/Topic: JSP Thread ModelA) Session AttributeB) Servlet context attributeC) Session ListenersD) Session context Listeners
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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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The following is the sequence of the life cycle of the servlets1. init()2. destroy()3. service()
Skill/Topic: ServletsA) 1,2,3B) 1,3,2C) 2,3,1D) 1,3,2
kiran kumar
- Jul 25th, 2006
I clicked on option B but it is wrong. pls correct it. not only for this question i faced some of them.
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If you want a servlet to take the same action for both GET and POST request, what should you do?
Simply have doGet call doPost, or vice versa.
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In one class i stored the key and values in the hashmap.so using key value i have to check wheterthe value for key is correct or not.so howto retreive the key and values in jsp page
rameshkumar
- Jul 20th, 2006
You can place the HashTable inside the setAttribute() method of the request object so that it can be accessed in the other page using the getAttribute() method.
d_shrivastava
- Feb 8th, 2006
You can use the tag lib. of struts for the same.iterator will help you.you can get the value.
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How are the implicit object made available in the jsp file? Where are they defined?
himanshuspatel
- Jul 19th, 2006
There are nine implicit variables in JSP : application ,session,request,response,out,page,pageContext,config,exceptionThe objects that these variables refer created by servlet container and are call i...
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Some Operating Systems have a limitation on the Max Length of the URL, which are normally _______ characters.
Skill/Topic: JSP ConnectionsA) 255 B) 225 C) 264 D) 250
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Which of the following statements is true about the ServletInterface ? (Multiple choice)
Skill/Topic: ServletsA) The central abstraction in the Servlet API is the Servlet interface. B) All Servlet implement this interface, either directly or, more commonly, by extending a class that implements it such as HttpServlet.Servlets > Generic Servlet > HttpServlet > MyServlet.C) The Servlet interface declares, but does not implement, methods that manage the Servlet and its communications with...
Ramesh Kumar
- Jul 6th, 2006
All the above answers for the servlet interface are correct.
JSP Interview Questions
Ans