HomeCoursesThe Java Interview Handbook: 300+ Interview Questions

4.4

Intermediate

15h

Updated 1 month ago

The Java Interview Handbook: 300+ Interview Questions

The ultimate guide to Java interviews with 300+ real-world questions and answers. Get interview-ready in just a few hours with strategies developed by FAANG engineers.

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Overview

Content

Reviews

It’s very common to have interviews testing your knowledge of a programming language you claim to be an expert in. If you've got an interview coming up on Java soon and need to get up to speed, this is the ideal course for you. You'll refresh your memory on everything from the basics to more advanced functionality you’re likely to be asked about. Even if you're using Java every day, you may not have been exposed to parts of it in some time, so it's always useful to make sure you're updated. This course features more than 300 of the most commonly asked core Java interview questions that you're likely to face as an experienced software engineer. You'll get to explore questions by topic, as well as see detailed answers for each one, and plenty of live code examples where relevant. Get started today.

It’s very common to have interviews testing your knowledge of a programming language you claim to be an expert in. If you've go...Show More

Content

86 Lessons201 Quizzes

Java Ecosystem

5 Lessons

Learn how to use Java, its ecosystem, JVM, editions, and essential development tools.

Introduction

Java & it's Ecosystem

Java Virtual Machine

Java Flavors & Processes

Java Tools & Files

Methods

4 Lessons

Unpack the core of Java's method handling, including varargs, pass-by-value, and method overloading.

Variable Argument Passing

Pass by Value

Pass by Reference

Method Overloading

Classes

11 Lessons

Work your way through Java class concepts, access control, inheritance, and object lifecycles.

Interfaces

2 Lessons

Grasp the fundamentals of Java interfaces, including method signatures, multiple inheritance, and functional interfaces.

Inheritance

3 Lessons

Dig into inheritance, its nuances, and Java's handling of multiple inheritance and method overriding.

Lambda Expressions

2 Lessons

Simplify complex topics of Java lambda expressions, functional interfaces, and type inference.

Generics

10 Lessons

Build on Java generics, covering type safety, raw types, bounded types, and wildcards.

Multi-Threading

7 Lessons

Sharpen your skills in Java multi-threading, thread safety, synchronization, and concurrency management.

Memory Management

4 Lessons

Unpack the core of Java memory management, from heap and non-heap areas to memory tuning strategies.

10.

Collections

3 Lessons

Break apart Java collection types, iteration techniques, and various collection implementations.

11.

Exceptions

4 Lessons

Grasp the fundamentals of exception handling, its types, and best practices in Java.

12.

Reflection

5 Lessons

Take a closer look at Java reflection, class modifiers, instantiation, and class loaders.

13.

Serialization

2 Lessons

Investigate serialization, its process, management techniques, and customizable options with Externalizable.

14.

Miscellaneous Topics

8 Lessons

Explore Java typing, keywords, annotations, boxing, unboxing, packages, strings, and casting essentials.

15.

Java in Practice

12 Lessons

Sharpen your skills in practical Java coding, object design, and concurrency practices.

16.

Patterns

3 Lessons

Unpack the core of Singleton, Builder, and various essential Java design patterns.

17.

The End

1 Lessons

Break apart the collaborative effort and gratitude expressed in the epilogue.

Certificate of Completion

Showcase your accomplishment by sharing your certificate of completion.

Course Author:

C. H. Afzal

Developed by MAANG Engineers

Every Educative lesson is designed by a team of ex-MAANG software engineers and PhD computer science educators, and developed in consultation with developers and data scientists working at Meta, Google, and more. Our mission is to get you hands-on with the necessary skills to stay ahead in a constantly changing industry. No video, no fluff. Just interactive, project-based learning with personalized feedback that adapts to your goals and experience.

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Software Developer

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Souvik Kundu

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"Your courses are simply awesome, the depth they go into and the breadth of coverage is so good that I don't have to refer to 10 different websites looking for interview topics and content."

Vinay Krishnaiah

Software Developer

Hands-on Learning Powered by AI

See how Educative uses AI to make your learning more immersive than ever before.

Personalized Interview Prep

Skip the LeetCode grind with a custom roadmap that adapts to your goals. Hands-on practice for Coding Interviews, System Design, and more.

Mock Interviews

Test your skills in a simulated interview setting. Receive personalized feedback based on your performance. Available for Coding Interviews, System Design, and more.

AI Prompt

Build prompt engineering skills. Practice implementing AI-informed solutions.

Code Feedback

Evaluate and debug your code with the click of a button. Get real-time feedback on test cases, including time and space complexity of your solutions.

Explain with AI

Select any text within any Educative course, and get an instant explanation — without ever leaving your browser.

AI Code Mentor

AI Code Mentor helps you quickly identify errors in your code, learn from your mistakes, and nudge you in the right direction — just like a 1:1 tutor!

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