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Interview Questions

Interview Question and Answers

These are the Questions that are normally asked in a job interview. Interview questions are very specific to the job role you are applying. Most of the times, interview for a job is done if different phases or categories. There are different rounds interviewer has to go through. However, there are certain questions in the interview which are common and can be done real well if we went prepared.

Interview Questions can be in various categories like:

Accounting and Finance, Marketing and Sales, Manufacturing, Finance, Hospitality questions, Law , Leadership and management, customer service, medical and health care, call center, Human Resource, etc.

How to prepare for Interview question and answers?

How to prepare for Interview question and answers? There are many possible ways in which you can prepare for the interview question and answers. If it is technical, you have many important questions that you are sure to ask in the interview. Especially, if you are thorough with the fundamentals or basics, most of your interview is cleared without much hassle.

The key is to prepare for with proper research about the company, where you are going to take the interview. Make sure to go through few same Human Resource questions as well. They will enable you to make good answers, and position yourself as a very good prospect for the job. Make sure you answer the interview question in a way that you will be the best fit for the job. And this can happen only through enough confidence. Make sure to go through as many questions as possible to gain the confidence.

Popular Latest Rated
Q:

What is the difference between an Interface and an Abstract class ?

Answer

1.Main difference is methods of a Java interface are implicitly abstract and cannot have implementations. A Java abstract class can have instance methods that implements a default behavior.


2.Variables declared in a Java interface is by default final. An abstract class may contain non-final variables.


3.Members of a Java interface are public by default. A Java abstract class can have the usual flavors of class members like private, protected, etc..


4.Java interface should be implemented using keyword “implements”; A Java abstract class should be extended using keyword “extends”.


5.An interface can extend another Java interface only, an abstract class can extend another Java class and implement multiple Java interfaces.


6.A Java class can implement multiple interfaces but it can extend only one abstract class.


7.Interface is absolutely abstract and cannot be instantiated; A Java abstract class also cannot be instantiated, but can be invoked if a main() exists.


8.In comparison with java abstract classes, java interfaces are slow as it requires extra indirection.

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Subject: Java

0 1797
Q:

Which of the following statements are equal for a variable declared in the interface ?

1. int X=10
2. public int X=10
3. public static final int X=10

A) Only 1 and 2 are equal B) Only 2 and 3 are equal
C) All are unequal D) All are equal
 
Answer & Explanation Answer: D) All are equal

Explanation:

All the statements are equal because inside an interface a variable declared will be public static final by default 

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Filed Under: Java
Job Role: IT Trainer

0 13178
Q:

Inside an interface when should the variables be initialized?

A) Globally B) Whenever required
C) Inside a function D) During the time of declaration
 
Answer & Explanation Answer: D) During the time of declaration

Explanation:

They should be initialized during the time of declaration itself otherwise it is a compilation eror

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Filed Under: Java
Job Role: IT Trainer

0 4014
Q:

Which of the following method declarations are allowed inside interface?

A) public void m1() B) private void m1()
C) protected void m1() D) abstract public void m1()
 
Answer & Explanation Answer: D) abstract public void m1()

Explanation:

Inside an interface every method will be by default abstract and public

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Filed Under: Java
Job Role: IT Trainer

0 3937
Q:

Why interface method is always public?

Answer

To make this method available to every implementation class

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Subject: Java
Job Role: IT Trainer

0 2122
Q:

Which among the following is a scope resolution operator?

A) : B) ::
C) :? D) None
 
Answer & Explanation Answer: B) ::

Explanation:

:: is the scope resolution operator

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Filed Under: Java
Job Role: Software Architect

0 4988
Q:

Which kind of inheritance is not supported directly through classes in java?

A) Multilevel B) Multiple
C) Single D) Hirarcheal
 
Answer & Explanation Answer: B) Multiple

Explanation:

Multiple inheritance is not supported directly but it is achieved through the concept of Interface

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Filed Under: Java
Job Role: Software Architect

0 2869
Q:

public class Threads2 implements Runnable {

public void run() {

System.out.println("run.");

throw new RuntimeException("Problem");

Which among the following is true?

}

public static void main(String[] args) {

Thread t = new Thread(new Threads2());

t.start();

System.out.println("End of method.");

}

}

A) java.lang.RuntimeException: Problem B) run. java.lang.RuntimeException: Problem
C) End of method. java.lang.RuntimeException: Problem D) End of method. run. java.lang.RuntimeException: Problem
 
Answer & Explanation Answer: D) End of method. run. java.lang.RuntimeException: Problem

Explanation:

Only D can be true

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