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

Search Interview Questions


 2796 questions in repository.
 There are more than 200 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 'Exterro' - 4 question(s) found - Order By Newest

  Q1. Does Java support Multiple Inheritance ?Core Java
Anonymous
Ans. Java doesn't support multiple inheritance. Interfaces does't facilitate inheritance and hence implementation of multiple interfaces doesn't make multiple inheritance.

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

   Like      Discuss      Correct / Improve     java   oop   oop concepts   inheritence   multiple inheritence   basic interview question     Credit Suisse  Sun Microsystems  VMware  NSEiT  Exterro  theScore  JP Morgan  Computrade Israel      basic        frequent

Try 1 Question(s) Test


  Q2. How is multiple inheritance implemented in Java ?Core Java

Ans. There was no multiple inheritance in java before version 8 as implementing multiple interfaces cannot be termed as inheritance.

With Java 8 , came the concept of default methods wherein the class implementing the interface carries the default implementation from the interface and hence facilitating multiple inheritance.

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

   Like      Discuss      Correct / Improve     multiple inheritance   inheritance   oops concept     Credit Suisse  Amdocs  Ample Softwares  Tudip Technologies  Edifecs  VMWare  NSEiT  Exterro  theScore  BlackRock        frequent


  Q3. Why java doesn't support multiple Inheritance ? or Explain Java Diamond Problem.Core Java2017-01-09 11:45:34

Ans. class A {
void test() {
System.out.println("test() method");
}
}

class B {
void test() {
System.out.println("test() method");
}
}

Suppose if Java allows multiple inheritance like this,

class C extends A, B {
}

A and B test() methods are inheriting to C class.

So which test() method C class will take? As A & B class test() methods are different , So here we would Facing Ambiguity.

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

   Like      Discuss      Correct / Improve     multiple inheritance  diamond problem     Sirius Computer Solutions  Hewlett Packard (HP)  Sun Trading  Amdocs  Ample Softwares  Tudip Technologies  Edifecs  VMWare  NSEiT  Credit Suisse  Exterro  theScore  BlackRock      basic        frequent


 Q4. Where to use interface and abstract class ?Core Java2018-08-06 14:52:09

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


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

   Like      Discuss      Correct / Improve          Exterro




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

X Close this

Help Us Improve.
Please share your
interview experience.

Company Name:   


Questions Asked: