Technical Interview Questions & Answers for Freshers: Java Interview Questions

3 min read 19,923 views
Posted by FirstNaukri Jul 29, 2019

As a Java professional, every fresher should do some basic preparation before attending a job interview. It is imperative to know the latest technologies, industry buzzwords, and be ready to answer some commonly asked Java Interview Questions.

To help you prepare for your technical job interview, we have curated a list of popular technical questions for Java professionals. This list of common Java Interview Questions will help you to test your knowledge and face interviews with confidence.

Let’s prepare these 10 sample questions and answers:

Q1) Java is platform-independent. Explain why.

Q2) How will you define encapsulation?

Q3) Explain why Java is not 100% object-oriented.

Q4) What do you know about access modifier?

Q5) Explain constructor chaining in Java.

Q6) How will you define a Class Loader in Java?

Q7) How can you define what is abstraction?

Q8) What is inheritance in Java? Explain.

Q9) What is object cloning?

Q10) What is Spring in Java?

Q1) Java is platform-independent. Explain why.

Java is known as platform-independent due to its byte codes that can efficiently run on any system irrespective of its operating system.

Q2) How will you define encapsulation?

Encapsulation is a mechanism that connects code (methods) with data (variables) as a single unit.

Q3) Explain why Java is not 100% object-oriented.

This is because it makes the use of 8 primitive data types that are not objects. These data types include float, Boolean, int, byte, double, char, short and long.

Q4) What do you know about access modifier?

In Java, access modifier is a special keyword that helps to restrict the access of a constructor, class, data member and method in another class.

Q5) Explain constructor chaining in Java.

Constructor chaining is the process of calling one constructor from another with respect to the current object.

Q6) How will you define a Class Loader in Java?

The Java Class Loader is a subset of Java Virtual Machine (JVM) used for loading the class files.

Q7) How can you define what is abstraction?

Abstraction is the quality of dealing with ideas instead of events. In Java, it deals with hiding the details and showing only the vital information to the user.

Q8) What is inheritance in Java? Explain.

Inheritance is a concept where the properties of a particular class can be inherited by another class. It allows the reuse of the code and establishes a relationship between different classes.

Q9) What is object cloning?

Object cloning in Java is defined as the process of creating an exact copy of an object.

Q10) What is Spring in Java?

Spring is defined as an application framework and inversion of control container for Java platform.

In a job interview, apart from testing your technical knowledge of the subject area, the interviewer also asks some general questions to understand you better. We also suggest you to prepare these frequently asked interview questions:

Tell us about yourself

What do you know about our company?

What are your strengths & weaknesses?

What are your hobbies?

Why do you want this job?

What are your salary expectations?

Where do you see yourself in 5 years?

Java professionals are much more in demand. However, the tough competition makes it vital to prepare in advance and leave no opportunity to prove your skills and ace the job interview.

Keep watching for more questions in this series. Happy learning.

All the best!

Latest Posts

Like
Save

Was this post helpful?

Catch up on other great reads⚡️

Career management
What is Sales and Marketing? – Definition, Differences, Importance
In today’s fast-paced business environment, understanding the roles of sales and marketing is crucial for anyone looking to enter the job market. Whether you're a college student preparing for the future or a recent graduate stepping into the professional world, having a solid grasp of these concepts can significantly enhance your career prospects.  This article will delve into the definitions,…
What is Sales and Marketing
HR interview question & answers
Top Cost Accountant Interview Questions and Answers
Interested to build a career in Cost Accounting? Here is a curated compilation of the latest and most frequently asked Cost Accounting Interview Questions and their Answers. Crack your Cost Accountant interview in your first attempt. Gather good  knowledge to grasp the basic concepts. In brief, cost accounting is a procedure of recording, examining, and assigning costs related to a process. This analysis…
HR interview question & answers
How to Answer “Tell Me About Yourself” Interview Question
Tell Me About Yourself question can be both daunting and a great opportunity in a fresher’s interview. When you are freshly graduated and entering the workforce, the ‘Tell Me About Yourself’ question in job interviews is crucial. You have the opportunity to make a strong first impression and demonstrate your potential. You have the chance to highlight your educational background, pertinent…
Tel me about yourself
HR interview question & answers
How To Handle Angry Customers – Guide with Examples and Tips
As a college student or recent graduate entering the workforce, one of the most challenging aspects of customer-facing roles is learning how to handle angry customers effectively. Whether you're working in retail, hospitality, or a call center, dealing with upset clients is an inevitable part of the job.  This guide will provide you with valuable insights and strategies to navigate…
How To Handle Angry Customers
HR interview question & answers
How To Reply To “How Are You?” – In Different Settings!
In the realm of fresher interview questions with answers, one of the most deceptively simple yet crucial exchanges begins with - How are you? The simple question "How are you?" may seem mundane, but how you respond can set the tone for conversations, interviews, or networking opportunities.  Whether in casual interactions, formal interviews, or networking scenarios, mastering how to answer…
How To Reply How Are You
Career management
30+ Instrumentation Interview Questions [With Answers]
Instrumentation is essential for maintaining precise measurements, process control, and monitoring in today's fast-paced technological and industrial environment. Acing the interview process is essential for college students and recent graduates looking to launch their careers in the field of instrumentation. The article explores the topic of instrumentation interview questions, providing insightful information, professional advice, and justifications for why how you…
process control and instrumentation interview questions
Interview guidance
Top Fresher Interview Questions and Answers for Software Engineers in 2025
Embarking on a career as a software engineer is an exciting journey filled with possibilities. However, the initial step of acing the interview process can be daunting for freshers. This guide is designed to demystify the interview experience, providing invaluable insights into the most common questions asked and tips on how to prepare effectively. Top Fresher Interview Questions For Software…
Software Engineering interview Questions
HR interview question & answers
Why Are You Leaving Your Job? | Interview Guide For Freshers
What Are You Passionate About? | Interview Guide for Freshers As a college student or recent graduate, you may find yourself in a situation where you're considering leaving your current job or internship. Whether it's your first professional role or a part-time position you've held during your studies, the decision to move on is significant. Understanding why you're making this…
Why Are You Leaving Your Current Job
Interview experiences
Online Chat Representative Interview Experience at Etech Global Services
Securing a position as an Online Chat Representative at Etech Global Services is not just a job opportunity; it's a chance to join a dynamic team in a rapidly evolving industry. I recently embarked on this exciting journey, applying for the role through FirstNaukri.com. The selection process comprised four distinct rounds – the Essay round, Personal Interview round, HR round,…
Interview at Etech Global Services
HR interview question & answers
Top 50 Accounting Interview Questions & Answers for Freshers
Entering the world of accounting can be an exciting yet challenging journey, especially for college students and freshers. The competition in the job market is fierce, and preparing for an accounting interview can make or break your chances of landing that dream job.  To ensure you're fully equipped, we've compiled a comprehensive list of the Top 50 Accounting Interview Questions…
Accounting Interview Questions And Answers