JSP Interview Questions and Answers
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Ques 6. What are the Object and Class classes used for?
The Object class is the highest-level class in the Java class hierarchy. The Class class is used to represent the classes and interfaces that are loaded by a Java program.
Ques 7. How can a servlet refresh automatically if some new data has entered the database?
You can use a client-side Refresh or Server Push.
Ques 8. The code in a finally clause will never fail to execute, right?
Using System.exit(1); in try block will not allow finally code to execute.
Ques 9. How many JSP scripting elements are there and what are they?
There are three scripting language elements: declarations, scriptlets, expressions.
Ques 10. In the Servlet 2.4 specification SingleThreadModel has been deprecated, why?
Because it is not practical to have such model. Whether you set isThreadSafe to true or false, you should take care of concurrent client requests to the JSP page by synchronizing access to any shared objects defined at the page level.