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Interview Questions and Answers for 'IBM India' - 6 question(s) found - Order By Newest

Recently asked in Accenture and Fidelity.
  Q1. Explain Flow of Spring MVC ?Spring
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Ans. The DispatcherServlet configured in web.xml file receives the request.

The DispatcherServlet finds the appropriate Controller with the help of HandlerMapping and then invokes associated Controller.

Then the Controller executes the logic business logic and then returns ModeAndView object to the DispatcherServlet.

The DispatcherServlet determines the view from the ModelAndView object.

Then the DispatcherServlet passes the model object to the View.

The View is rendered and the Dispatcher Servlet sends the output to the Servlet container.

Finally Servlet Container sends the result back to the user.

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Very Frequently asked. Have been asked in HCL Technologies very frequently ( based on 3 feedback ). Among first few questions in many interviews.
  Q2. Differences between abstract class and interface ?Core Java
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Ans. Abstract classes can have both abstract methods ( method declarations ) as well as concrete methods ( inherited to the derived classes ) whereas Interfaces can only have abstract methods ( method declarations ).

A class can extend single abstract class whereas it can implement multiple interfaces.

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  Q3. What are the different types of inner classes ?Core Java
Anonymous
Ans. Simple Inner Class,
Local Inner Class,
Anonymous Inner Class,
Static Nested Inner Class.

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Very Frequently asked to fresh graduates and less experienced. Favorite question in Walk in drives. Frequently asked in Indian Services companies.
  Q4. Difference between Overloading and Overriding ?Core Java
Anonymous
Ans. Overloading - Similar Signature but different definition , like function overloading.

Overriding - Overriding the Definition of base class in the derived class.

  Sample Code for overloading

  Sample Code for overriding

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 Q5. What is a static variable in Java ?Core Java2016-07-19 11:20:35

Ans. It is a class level variable that is shared among the objects of that class.

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   Like      Discuss      Correct / Improve     static   static variables   class level variables     IBM India      basic        frequent

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 Q6. Can we change return type of Overridden method ?Core Java2018-05-13 19:39:57

 This question was recently asked at 'IBM India'.This question is still unanswered. Can you please provide an answer.


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   Like      Discuss      Correct / Improve          IBM India




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