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.

4.5

86 Lessons

15h

Updated 2 months ago

Join 2.8 million developers at

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

Learning Roadmap

Your Personalized Roadmap is ready!

Your roadmap is tailored to your weekly

schedule - adjust it anytime.

Your roadmap is tailored to your weekly schedule - adjust it anytime.

You can customize your roadmap further or retake assessment from here

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.

Trusted by 2.8 million developers working at companies

"These are high-quality courses. Trust me. I own around 10 and the price is worth it for the content quality. EducativeInc came at the right time in my career. I'm understanding topics better than with any book or online video tutorial I've done. Truly made for developers. Thanks"

Anthony Walker

@_webarchitect_

"Just finished my first full #ML course: Machine learning for Software Engineers from Educative, Inc. ... Highly recommend!"

Evan Dunbar

ML Engineer

"You guys are the gold standard of crash-courses... Narrow enough that it doesn't need years of study or a full blown book to get the gist, but broad enough that an afternoon of Googling doesn't cut it."

Software Developer

Carlos Matias La Borde

"I spend my days and nights on Educative. It is indispensable. It is such a unique and reader-friendly site"

Souvik Kundu

Front-end Developer

"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

Course

The Complete Java Crash Course

Gain insights into Java, a versatile and portable programming language. Delve into similarities with C++ and Python and learn essential Java-specific features with practical coding examples.

6 h

intermediate

Course

Collections in Java

Gain insights into Java Collections Framework. Delve into lists, sets, and hashmaps. Learn about data modification, sorting, thread-safety, and internal workings for efficient usage.

5 h

intermediate

Course

Recursion for Coding Interviews in Java

The ultimate guide to recursion interviews with strategies developed by FAANG engineers. Practice with real-world interview questions, detailed explanations, and visualizations to prep faster.

6 h

intermediate

Course

Competitive Programming - Crack Your Coding Interview, C++

The ultimate guide to coding interviews. Developed by FAANG engineers. Boost problem-solving skills with number theory, dynamic programming, and graph theory. Get interview-ready in just a few hours.

15 h

intermediate

Course

Learn REST and SOAP API Test Automation in Java

Gain insights into performing REST and SOAP API test automation, writing API and integration tests from scratch, and preparing for test automation interviews with a downloadable framework.

3 h

intermediate

Course

Design a Test Automation Framework with Selenium and Java

Delve into designing a test automation framework using Java and Selenium. Learn about Selenium basics, TestNG, build management, logging, and reporting to automate web applications effectively.

12 h

beginner

Course

Java Unit Testing with JUnit 5

Gain insights into configuring and utilizing JUnit 5 for Java unit testing. Learn about writing effective unit tests, integrating assertions, assumptions, parameterized tests, and their significance.

5 h

intermediate

Course

Grokking the Coding Interview Patterns

Grokking the Coding Interview is the best course that saves countless hours wasted in grinding LeetCode. Master 28 coding patterns; unlock all LeetCode problems. Developed by and for MAANG engineers.

85 h

intermediate

Course

The Complete Java Crash Course

Recursion for Coding Interviews in Java