Core Java - Interview Questions and Answers for 'Keyword' | Search Interview Question

Interview Questions and Answers - Order By Newest

Q41. How different is it when final applied to variables and object references ?

Ans. final when assigned to object references doesn't make them immutable. It means that the references cannot be de-referenced.

final when applied to variables means that the value cannot be changed.

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

_{Like Discuss Correct / Improve final keyword final variable}

Q42. Why Java has final class ?

Core Java

^{This question was recently asked at 'Avis'.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 final class final keyword Asked in 1 Companies basic}

Q43. Are final methods faster than regular instance methods ?

Core Java

Ans. Yes. As they cannot be overridden , there is no use of virtual table concept which is used for dynamic binding resolution.

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

_{Like Discuss Correct / Improve final methods final keyword expert}

Q44. Can we declare an Interface with abstract keyword ?

Core Java

Ans. Yes

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

_{Like Discuss Correct / Improve abstract keyword}

Q45. What is the Main Advantage of the native Key Word?

Core Java

^{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 native keyword}

Q46. What will be the output of following code ?

public class BuggyBread {

   private int x;

   private BuggyBread(int x){
      x = x;
   };

   public static void main(String[] args){
      BuggyBread buggybread = new BuggyBread(5);
      System.out.println(buggybread.x);
   }
}

Core Java

a. compilation error