What will happen inside init() in servlet. my interviewer
asked servlet lifecycle. i said "once servlet is loaded in
to memory init() will be called which performs servlet
initialization " . Again interview asked what values will be
initialized . what is difference between init() and
init(ServletConfig config).
Answer Posted / amit singh
when the first request goes to the container then first
container create the object and the constructor execute
then init() method called
note: thatGenericServlet has an
init(ServletConfig conf ) method require by the Servlet
interface. If you don't override init(ServletConfig conf),
then the GenericServlet method will be called - it in turn
calls the init() method.
so if you use the override the init(ServletConfig con)
so you should to call the super.init(ServletConfig con)
which in turn call the lnlt()
2)what will happen inside the init() its use to intialize
teh parametr which you give in a web.xml
so it intialize the custom parmeter and other paranetr too
so its just for intialization
because wedon't do intialization through constructor
bracuse the object of servlet will create by webcontainer
and execution of constructor too so we use thr init method
for initializtion because we are not able to use new for
creating a object in sevlet
thanks amit singh
amitsing2008@gmail.com
Is This Answer Correct ? | 8 Yes | 1 No |
Post New Answer View All Answers
What is the difference between Error, defect,fault, failure and mistake?
Can keyword be used as identifier?
What do heavy weight components mean in java programming?
How is garbage collection controlled?
What are the types of methods in java?
Is multiple inheritance supported by java?
What is generic type?
What is difference between arraylist and list in java?
What is keyword auto for?
What is difference between equal and == in java?
What are the characteristics of java?
What is a copy constructor in java?
What is the original name of java?
How many threads does a core java have?
What are the two types of java?