Core java - Interview Questions and Answers for 'Ericsson' | Search Interview Question - javasearch.buggybread.com
Javasearch.buggybread.com

Search Interview Questions


 More than 3000 questions in repository.
 There are more than 900 unanswered questions.
Click here and help us by providing the answer.
 Have a video suggestion.
Click Correct / Improve and please let us know.
Label / Company      Label / Company / Text

   



Core java - Interview Questions and Answers for 'Ericsson' - 2 question(s) found - Order By Newest

Very frequently asked in phone and walk in interviews.
  Q1. What are Marker Interfaces ? Name few Java marker interfaces ?Core Java
Ans. An interface without any method declaration is called as marker interface. there are 3 in-built interfaces in JVM i.e. serializable, clonable, remote

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

   Like         Discuss         Correct / Improve     java   oops   interfaces   marker interface   serializable   clonable     Asked in 21 Companies      intermediate        frequent

Try 1 Question(s) Test


Related Questions

  Difference between serializable and externalizable interface ?
 How Marker interfaces works internally ?
  Is runnable a Marker interface ?
  Whats the purpose of marker interfaces ?
  What is a cloneable interface and what all methods does it contain?
 What is a delete marker wrt to S3 objects ?


 Q2. What is the difference between constructor and instance initialization blocks ?Core Java
Ans. Constructor has the same name as class name whereas instance initialization block just have a body without any name or visibility type.

instance initialization blocks are useful if we want to have some code run regardless of which constructor is used or if we want to do some instance initialization for anonymous classes.

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

   Like         Discuss         Correct / Improve     instance initialization blocks  constructor  constructor vs instance initialization blocks     Asked in 2 Companies

Try 1 Question(s) Test


Related Questions

  What are the common uses of "this" keyword in java ?
  Can we use both "this()" and "super()" in a constructor ?
  Why every object constructor automatically call super() in Object before its own constructors?
  Can constructors be synchronized in Java ?
  Does Constructor creates the object ?
 What are constructors and Destructors in Java ?
  Are constructors inherited? Can a subclass call the parent's class constructor? When?
  Difference between object instantiation and construction ?
  How can we create objects if we make the constructor private ?
  Difference Between this() and super() ?



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: