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Top Java Interview Questions With Answers

person icon Gauttam SK

4.3

Top Java Interview Questions With Answers

Master the Most-Asked Java Interview Questions with Expert Answers in this course

updated on icon Updated on Sep, 2025

language icon Language - English

person icon Gauttam SK

English [CC]

category icon Development ,Programming Languages,Java

Lectures -39

Resources -1

Duration -3 hours

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4.3

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Course Description

How about Quickly Revising all the Important Java Concepts in a few Hours before an interview?

Preparing for a Java Interview is tricky. You will need to gain a good understanding of the new features and revise the concepts you used in your preparation. This course helps you prepare for a Java Interview with hands-on code examples covering Java Interview Questions and Answers on a varied range of topics listed below.

The Course will cover all the popular Core Java interview questions, String Handling interview questions, Java 8 interview questions, Java multithreading interview questions, Java OOP interview questions, Java exception handling interview questions, collections interview questions, and some frequently asked Java coding interview questions.

Review all the questions to improve your chances of performing well in the interviews. The questions will revolve around the basic, core & advanced Fundamentals of Java. This course covers questions for every level of Java developers, but mostly Beginners and intermediates

We will cover the topics:

  • Language Fundamentals

  • Operators & Assignments

  • Flow-Control.

  • Declarations and Access Modifiers

  • OOPs(Object Oriented Programming)

  • Inner classes

  • ENUM

  • JVM Architecture, Garbage Collection

  • File I/O NIO

  • Serialisation and Deserialization

  • Collections

  • Generics

  • Concurrent Collections

  • Multi-Threading And Advanced Multithreading

  • java.lang package

  • Exception Handling

  • functional programming in java using lambda and streams

  • Design Principles

  • Design Patterns

And Last but not least

We will keep updating this course by adding more questions. You can also suggest to us any questions you think should get covered. We will definitely add that in the upcoming upgrade.

Hope this clears all your doubts and sets the expectations right.

Happy Learning

Goals

  • You will understand what kind of questions are asked in Beginner Java Interviews.
  • You will be able to revise all Your Java Concepts with Awesome Examples quickly.
  • You will Understand Basic and Advanced object-oriented concepts.
  • You will understand Exception Handling Best Practices.
  • You will be able to answer questions on Java Platform, Wrapper Classes and Strings.
  • You will Understand New Features in Java.
  • You will be able to Answer Questions on Collections, Generics and MultiThreading.
  • You will understand the basics of Functional Programming - Lambda Expressions and Streams.

Prerequisites

  • Basic knowledge of Java.
  • In the course, we use Eclipse to demonstrate examples. Some Java IDEs will be useful.
Top Java Interview Questions With Answers

Curriculum

Check out the detailed breakdown of what’s inside the course

Introduction

5 Lectures
  • play icon Introduction Of Java 02:38 02:38
  • play icon Structure Of Java Program 04:46 04:46
  • play icon Difference Between Primitive & Non-Primitive Data types in Java _ Data types in Java 01:40 01:40
  • play icon Setters & Getters method and Encapsulation in Java 06:58 06:58
  • play icon ToString Method in Java 05:52 05:52

String, String Buffer , String Builder

16 Lectures
Tutorialspoint

Collection Framework in Java

5 Lectures
Tutorialspoint

Functional Interfaces & Stream API

5 Lectures
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Spring Boot

7 Lectures
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Microservices in Spring Boot

1 Lectures
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Instructor Details

Gauttam SK

Gauttam SK

Gauttam is Trainer and Educator.

He is also a Founder & CEO at DeveloperCorners.

TEDx Speaker,  Author of  "Java The Important Reference "

Has YouTube channel 'DeveloperCorners' with more than Thousands of subscribers and 1300+ videos on different technologies.

He provides online as well as corporate training to multiple IT companies & Colleges, and Schools.

Worked on Java, SpringBoot, Hibernate, Python, AWS, Blockchain, and MySQL.

Learning should be interesting.

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