Java - Interview Questions and Answers for 'TU Kaiserslautern' | Search Java Interview Question - javasearch.buggybread.com
Javasearch.buggybread.com
Share

Search Java Interview Questions


 2137 questions in repository.
 There are more than 200 unanswered questions.
Click here and help us by providing the answer.
Label / Company      Label / Company / Text

   



Interview Questions and Answers for 'TU Kaiserslautern' - 1 question(s) found - Order By Newest

Frequently asked to fresh graduates and less experienced developers. Among the first few questions in many interviews.
  Q1. What are the difference between composition and inheritance in Java?Core Java
Admin
info@buggybread.com
Ans. Composition - has-a relationship between classes.
Inheritance - is-a relationship between classes.

Composition - Composing object holds a reference to composing classes and hence relationship is loosely bound.
Inheritance - Derived object carries the base class definition in itself and hence its tightly bound.

Composition - Used in Dependency Injection
Inheritance - Used in Runtime Polymorphism

Composition - Single class objects can be composed within multiple classes.
Inheritance - Single class can only inherit 1 Class.

Composition - Its the relationship between objects.
Inheritance - Its the relationship between classes.

  Sample Code for inheritance

  Sample Code for composition

 Help us improve. Please let us know the company, where you were asked this question :   

   Like      Discuss      Correct / Improve     java   java concepts   inheritance   composition   inheritance vs composition     HCL Technologies  Tata Consultancy (TCS)  Infosys  Amazon  Source Intelligence  News UK  Starmount  MapQuest  SalesForce  Expedia  Deegit  JP Morgan  Canva  Todle  Yodle  Berkley Net  Help Scout  Partners HealthCare  Doximity  Commvault  Heroku  Starmount  Help.com  healthcare system  TU Kaiserslautern      basic        frequent

Try 5 Question(s) Test


Related Questions

  Difference between Compositions and Inheritance ?
 Which of the following Java feature promotes access protection or Hiding ?

a. Inheritance
b. Encapsulation
c. Abstraction
d. Composition
  Which of the following is tightly bound ? Inheritance or Composition ?
  Can we compose the Parent Class object like this ?
 Which of the following Java features facilitates Dependency Injection - Inheritance or Composition ?
 How are the concept of Association related to Composition and Inheritance ?
 Is dependency injection possible if we don't have inheritance / Composition ?




Subscribe to Java News and Posts. Get latest updates and posts on Java from Buggybread.com
Enter your email address:
Delivered by FeedBurner



comments powered by Disqus
 

Help us and Others Improve. Please let us know the questions asked in any of your previous interview.

Any input from you will be highly appreciated and It will unlock the application for 10 more requests.

Company Name:
Questions Asked:
         

X Close this

1 person from Ashburn are looking for questions for 'TU Kaiserslautern'. Connect with them to better prepare for your interview.
X Close this

Help Us Improve.
Please share your
interview experience.

Company Name:   


Questions Asked: