Interview Questions and Answers for 'Xchanging' | Search Interview Question

Interview Questions and Answers for 'Xchanging' - 3 question(s) found - Order By Newest

Very Frequently asked to fresh graduates and less experienced. Favorite question in Walk in drives. Frequently asked in Indian Services companies.

Q1. Difference between Overloading and Overriding ?

Core Java

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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Related Questions

What are the difference between composition and inheritance in Java?

Explain OOPs

or

Explain OOPs Principles

or

Explain OOPs Concepts

or

Explain OOPs features

or

Tell me something about OOPs

What is the difference between Encapsulation and Abstraction?

What are points to consider in terms of access modifier when we are overriding any method?

What is Polymorphism in Java ?

Can you give a real world example of Encapsulation and Abstraction ?

Why every object constructor automatically call super() in Object before its own constructors?

How compiler handles the exceptions in overriding ?

Difference between Composition and Inheritance ?

Frequently asked question for intermediate developers. Frequently asked in HCL Technologies and EPAM.

Q2. What is Volatile keyword used for ?

Core Java

Ans. Volatile is a declaration that a variable can be accessed by multiple threads and hence shouldnt be cached.

Sample Code for volatile

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Related Questions

How does volatile affect code optimization by compiler?

how is the internal code for the "volatile" implemented ?

What are the different ways to avoid multi Threading related problems in Java ?

Can we make array volatile in Java ?

Have you heard of volatile Table in Teradata ?

what is volatile and atomic

Q3. What is JAXB ?

Xml

Ans. Stands for Java API for XML Binding. This standard defines a mechanism for writing out Java objects as XML and for creating Java objects from XML structures.

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What are the benefits of JSON over XML ?

Difference between SAX and DOM Parser ?

What are the contents of Hibernate configuration file ( hibernate.cfg.xml ) ?

What is deployment descriptor ?

or

What is the use of deployment descriptor ?

Which of the following file is called deployment descriptor ?

a. application.xml
b. project.xml
c. web.xml
d. build.xml

Can we have multiple servlets in a web application and How can we do that ?

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