Computer Science Interview Questions

What is Computer Science: Computer science is the study of theory, experimentation, and engineering that form the basis of design and use of computers. Computer Science Engineering is the study of computers and computational systems. Unlike electrical engineers, computer scientists deal mostly with software and software systems; this includes their theory, design, development and application.

Necessary area of study within Computer Science and Engineering for bachelor of computer science include artificial intelligence, computer systems and networks, security, database systems, human computer interaction, vision and graphics, numerical analysis, programming languages, software engineering, ms in computer science, bioinformatics and theory of computing.

Even after knowing how to program is not enough for the study of computer science, it is only one element of the field. Computer scientists design and create algorithms to solve programs and study the performance of computer hardware and software. The issues that computer scientists encounter range from the abstract which is determining what problems can be solved with computers and the complexity of the algorithms that solve them, to the tangible which include designing applications that perform better on handheld devices, easy to use, and uphold security systems.

Bachelors of University of Maryland’s Computer Science Department are lifetime learners; they are able to adapt quickly all new frameworks and innovations in this evolving domain.

Advantages of Computer Science

Those who are persuing a degree in Computer Science but need further consulting, the Complete University Guide will help you. Here's 6 compelling reason to study Computer Science degree:

  • Modern and digital age needs computer scientists : Like it or not but you're living in it – this is the Digital Age. Computer programmes have infiltrated every aspect of our lives. Computer scientists theorise, design, develop, and implement the software and hardware for the systems we use day in day out – sounds pretty important to us.
  • Computer science students have excellent graduate prospects : Check out Computer Science subject table or msc computer science course to look down the Graduate Prospects column and you'll notice that computer science students stand at pretty good level of being professionally employed or in further study within six months of leaving graduation. And that chance is strengthened if you go to one of the UK's best university for the specialization.
  • Computer engineers earn big bucks : Computer engineers are in great demand and their salaries reflects this. Recent graduates in professional roles earn quite a lot on average.
  • Computer engineers needed in every type of industry : Every industry uses computers so basically computer engineers can work in any domain. Problems in science, engineering, health care, and so many other areas can be solved by computers. It's up to the computer scientist to figure out how to design the software to implement the solution.
  • Internationally Diverse Cohort : Computer science departments at many benefits from of having one or more culturally diverse cohorts. According to HESA data almost 20,000 computer science students come from overseas. A diverse cohort means you'll be exposed to different cultures and potentially persuing education with an international firm.
  • Abroad opportunities : Computers are used globally and hence it enhances the requirement of softwares used. Check the opportunities for overseas study on the courses that interest you and which will provide you with a deeper understanding of how computers are used around the world, allowing you to experience other cultures, and gain some language skills in the process.


If you are preparing for a job or computer science projects in this domain then you must learn following interview questions.

Below are the 25 most common Computer Science interview Questions that were asked mostly:

1.What is a file?

2.What is class?

3.What is an object?

4.What was the name of first computer?

5.What is the different OOPS principle?

6.What is inheritance?

7.What is polymorphism?

8.What are instance and class variables?

9.Compare method and constructor?

10.What is a singleton class?

11.What are super computers?

12.What is the different type of access modifiers?

13.Which is the highest operator precedence in Java ?

14.What is an array?

15.What is the difference between equals() and method and == operator?

16.Is string class final?

17.What is a wrapper class?

18.Difference between overloading and overriding?

19.What are multiple inheritances in Java?

20.What is stream?

21.What is Character stream?

22.What is a Byte stream?

23.What is an Interface?

24.Difference between class and interface?

25.What is an abstract class?


This has been a comprehensive guide to the Computer Science Interview Questions and answers to questions are available online so that the candidate can crackdown these Computer Science Interview Questions easily. This article consist of all top Computer and solfware related information.

Although computer science has become an industrial activity, in many respects the success of a programming language is a subjective affair. It is based on solid theoretical foundations by providing a wide spectrum of programming paradigms. If one adds the simplicity of interaction with the language which the toplevel supports, that makes it a language perfectly adapted for teaching.

Some of the many Computer Science Interview Questions listed below will help you get an idea about what questions gets asked in such jobs related to Software Engineering & Tech. Get through the Computer Science Interview bar with our selected Computer Science Interview Questions for all Computer Science enthusiasts!


For thousands of similar Computer Science Interview Questions download EduThrill..

Experience the thrill of challenging people around the world on Computer Science Interview Questions!