LeetCode in Java: Algorithms Coding Interview Questions (Udemy.com)
Ace your next coding interview by solving essential coding interview questions and get an offer from big tech company.
Created by: Md. A. Barik
Last updated September 2026
What you will learn
- Solve Easy to Hard Difficulty Problems using Different Data structures and algorithms (DSA)
- Solve Easy to Hard Difficulty Problems
- How to solve some of the classical coding interview questions
- How to breaking down the coding interview problems in a decomposition manner
- Strengthen your problem solving skills
How it compares
Against the other 86 rated Udemy courses in Data Structures and Algorithms on CourseDuck:
- Rating4.5 out of 5higher than 46% of them
- Reviews1,697#18 of 87 by number of reviews
- Length38.9 hourslonger than 88% of them
- Last updatedSeptember 2026more recently than 98% of them
Course Description
Welcome to "LeetCode in Java: Algorithms Coding Interview Questions" course!
In this course, you'll have a detailed, step by step explanation of classical hand-picked LeetCode Problems where you'll learn about the optimum ways to solve technical coding interview question. This is the course I wish I had when I was preparing myself for the interviews. This course comes with a 30-day money-back guarantee. So nothing to lose!
What is LeetCode?
LeetCode is a huge repository of real interview questions asked by the most popular tech industries( Google, Amazon, Facebook, Microsoft, Apple, Quora, LinkedIn, Bloomberg, Uber, Goldman Sachs, Twitter and more ).
Interviewers from the most popular companies(like Google, Amazon, Facebook, Uber, Twitter etc.) often directly ask questions they find on LeetCode. It's hard to navigate through the large amount of problems(around 1500) to most important questions, this is what this course stand for.
I spent countless hours on LeetCode. From my experience, I'm telling you that you don't have to do the all problem and still be able to get a job at a big tech industry.
By the time you're finished with the course, you will be prepared for common technical coding interview questions.
See you inside the course!
Instructor Details
- 4.5 Rating
1,697 Reviews
Md. A. Barik
Hi! I’m MD A BARIK, a self-taught programmer and Software Engineer with a deep passion for programming and technology. I started programming at the age of 16, and I’ve been fascinated by computers and technology from an early age.
As a self-taught programmer, I understand how overwhelming it can be to navigate the countless online courses, tutorials, and books available today. Many of them are overly verbose and fail to teach practical, real world skills. Most learners struggle to know where to start when learning a complex algorithms, and not everyone can afford to spend thousands of dollars on an expensive coding bootcamp.
I believe programming education should be affordable, accessible, and focused on real-world skills. Learning resources should be practical, up-to-date, and should not waste a student’s valuable time.
Throughout my programming journey, I’ve learned many valuable lessons, and I’m passionate about sharing that knowledge with others. My goal is to teach practical programming skills that help learners become better problem solvers, build confidence, and create better opportunities for their careers.
I strive to create courses that are comprehensive, practical, and easy to understand, with a strong focus on real-world programming skills.
See you inside the courses!
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Reviews
By Bala Krishna Yadav Kunati on 4/15/2026
Your course is really great. However, Instead of directly going for the solution, If you can explain what makes you think of an approach or direction, like "Think out loud", this would be lot helpful in solving any kind of problems. Instead of just memorizing the current solution
By Alamin Islam on 11/29/2025
I’ve learned more about Java and algorithms from this course than from any other source. Each LeetCode problem is explained step by step, which helped me a lot.
By Karlo Alberto on 11/21/2025
The course focuses on solving problems efficiently in Java. I loved how the instructor teaches both brute force and optimized approaches for every topic.
By Tamanna Tabassum on 11/14/2025
Absolutely worth it! If you’re preparing for a coding interview using Java, this course covers everything — from arrays and strings to trees and graphs.
By Afzal Mughal on 11/14/2025
This course taught me how to think like a programmer. The LeetCode problems are well chosen, and the explanations are practical and beginner-friendly.
By Sumeet Agrawal on 7/24/2024
I think this course lack 1 important thing - Explanation of concept without problem solving. It does not provide background about what is Window Sliding, What is Backtracking in depth. Each section should have a dedication section for that.
By Xavier Fernando Granda Reinoso on 2/27/2024
The explanation of the exercises are very accurate and simple. The way that he uses drawings to convey the ideas to solve the algorithms is absolubtely awesome making the dificult and complex seems esay to undertand.
By Kedar Kashinath Koshti on 9/1/2023
SQL questions are also asked quite a lot in interviews, kindly add it to the list! Otherwise this is quite helpful for most of the coders including beginners. Crisp & clear explanation .
By Gaurav on 1/30/2023
Amazing course loved it made my knowledge of algorithms much better Please I will be grateful if you add more problems to it, it will help me to sharpen my skills way further
By Krishna Chaitanya on 2/16/2021
I first have to appreciate for the question selection. However,the course makes me refer to other sites to understand the solution properly, as many of the questions are answered with solution directly. There is no proper logical explanation how the solution is approached. It would have been appreaciated if the brute force approach is first discussed and then discuss about how to build optimum soultion. This approach is given only for few problems.
Quality Score
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Overall Score : 90 / 100









