Top 50 JSP Interview Questions & Answers JSP is a standard extension of Java and is defined on top of Servlet .. interview. Download PDF. Dear readers, these JSP Interview Questions have been designed specially to get you As per my experience good interviewers hardly plan to ask any particular question during continue based on further discussion and what you answer. JSP Interview Questions and Answers for Experienced, Beginners, Freshers Here I am providing some important JSP interview questions with answers to help.
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Java/J2EE Interview - Top 50 JSP Interview Questions and Answers for developers. The primary level of JSP Interview Questions. .. We've observed from our experience that you won't struck in an interview just after reading the lengthy. JSP Interview Questions and Answers. What is a JSP and what JSPs are normal HTML pages with Java code pieces embedded in them. JSP pages are saved. There is a list of top 40 frequently asked JSP interview questions and answers for freshers and professionals. If you know any JSP interview question that has not.
Note that a relative URL must be supplied for file attribute.
Top 10 Servlet JSP Interview Questions for Java J2EE programmer - FAQ
Although static resources may be included, it is not preferred as each request requires inclusion. JComponent is a subclass of Container.
It contains other Components and JComponents.
How can a thread safe JSP page be implemented? It can be done by having them implemented by the SingleThreadModel Interface. How can the output of JSP or servlet page be prevented from being cached by the browser? How to restrict page errors display in a JSP page? Note that these are different from JSP implicit objects and contains only the attributes in given scope.
Most of the times, you can find them in the example projects and you can use them. These jars are container specific, for example in Tomcat, we need to include jstl.
Fortunately JSP is extendable and we can create our own custom tags to perform certain operations. We can add custom tag library in JSP page using taglib directive and then use it. This can be very useful for user when the number is really long.
So we want some custom tags like below:. Based on the number and format passed, it should write the formatted number in JSP page, for the above example it should print , All we need to do it to include it in the JSP page using taglib directive.
To handle exceptions thrown by the JSP page, all we need is an error page and define the error page in JSP using page directive.
To create a JSP error page, we need to set the page directive attribute isErrorPage value to true, then we can access exception implicit object in the JSP and use it to send a customized error message to the client. Below code snippet provide sample usage. We can use c: If we have multiple servlet and servlet-mapping elements in deployment descriptor for a single servlet or JSP page, then container will initialize an object for each of the element and all of these instances will have their own ServletConfig object and init params.
Yes why not, I have seen some developers getting confused with this. We can use JSP page directive session attribute to indicate compiler to not create session by default. To disable the session creation, we can use it like below. PrintWriter is the actual object responsible for writing the content in response. JspWriter uses the PrintWriter object behind the scene and provide buffer support. When the buffer is full or flushed, JspWriter uses the PrintWriter object to write the content into response.
JSP Servlet Tutorials
Please let me know if I have missed any important JSP interview question, I will be adding more to the list in the future. If you have come this far, it means that you liked what you are reading. Why not reach little more and connect with me directly on Facebook or Twitter.
I would love to hear your thoughts and opinions on my articles directly. Recently I started creating video tutorials too, so do check out my videos on YouTube.
The questions are not displaying properly I am using Chrome. Not checked on other browsers. The text is white and on a white background. Think there is some problem after the comments question….
Thanks for the heads up, some issue happened while editing the post causing the issue. It has been fixed now. Great eye opener.
I have an external object and I want to make custom field clickable to the record instead of the salesforce standard name field. I found out lot of alternates like creating a formula field and making it clickable. But, the issue here is external objects are not provided with the flexibility of creating a formula fields.
Thanks for this great list of JSP Interview questions and answers. Nice and it is very useful for java interviews. Please let me know if there are some questions that you think should be in the list, I will add them with proper answers. Very Very helpful set of questions answers, I read almost all topics of journaldev, Thank you so much,.
You have the best set of interview questions here. Sorry i got it.
JSP Interview Questions
The scope in which the Bean exists and the variable named in id is available. The default value is page. The meanings of the different scopes are shown below: Instantiates a Bean from a class, using the new keyword and the class constructor. The class must not be abstract and must have a public, no-argument constructor.
If the Bean already exists in the scope, gives the Bean a data type other than the class from which it was instantiated. If you use type without class or beanName, no Bean is instantiated.
Question 5: How can one Jsp Communicate with Java file.
JSP Interview Questions and Answers - Freshers & Experienced!
Question 6: This is a fact based interview question what it checks is how much coding you do in JSP if you are doing it frequently you definitely know them. Implicit object is the object that is created by web container provides to a developer to access them in their program using JavaBeans and Servlets. These objects are called implicit objects because they are automatically instantiated.
They are request, response, pageContext, session, and application, out, config, page, and exception. Question 7: In JSP page how can we handle runtime exception? We can use the errorPage attribute of the page directive to have uncaught run-time exceptions automatically forwarded to an error processing page. It will redirect the browser to the JSP page error. Within error. Question 8: Question 9: How can you pass information form one jsp to included jsp: This JSP interview question is little tricky and fact based.
Question Ans tag library is a collection of custom tags. Custom actions helps recurring tasks will be handled more easily they can be reused across more than one application and increase productivity.
JSP tag libraries are used by Web application designers who can focus on presentation issues rather than being concerned with how to access databases and other enterprise services. Some of the popular tag libraries are Apache display tag library and String tag library.
You can also check my post on display tag library example on Spring. Please contribute any interview questions asked to you guys on JSP Interview or if you are looking for the answer of any JSP questions, I will try to help you.
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Anonymous said JSP Questions are rather good and answers are better. October 10, at May 23, at April 13, at October 14, at 4:Stored procs provide a mechanism to do these manipulations. It can be invoked without instance of a class. This article is a collection of some JSP interview questions which has asked in the various interview to my friends and colleagues. A view is loaded by the browser using the GET command and no user data is sent.
It redirects the browser to JSP page error. The include directive statically inserts the contents of a resource into the current JSP.