Duplicate File Handler (Go)
Duplicate File Handler is a useful tool that can free some space on your drive. Write a handler that checks and compares files in a folder, displays the result, and removes duplicates.
Graduate
Go Developer
4.539 hours12K learnersCertificate
Prepare for a Golang developer job: build CLI apps, manage user interactions, and enhance debugging skills with core language features.
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What you'll learn
Throughout this course, you will start by understanding the basics of the Go language and its standard library. You'll then use this knowledge to build simple and more complex CLI applications, such as an in-memory notepad, a duplicate file handler, or a calculator.
By the end of the course, you will be able to:
— Understand and manipulate Go's arrays and slices, including performing operations like sorting.
— Apply additional data structures, such as stack and queue, in practical projects like creating a smart calculator.
— Master object-oriented programming in Go by working with structs, methods, and interfaces.
— Implement hashing techniques in your Go applications to ensure data integrity and uniqueness for strings and files.
— Debug Go applications using methods like logging and the Delve debugger.
— Create CLI applications that can be configured with command-line arguments and flags.
Learn by doing
# 1
Apply knowledge into practice
You already know the theory. Now it's time to code like you do at work—in a professional IDE, with real project constraints, solving problems that actually matter. Welcome to software engineering as it should be.
# 2
Navigate complexity with surgical precision
Most developers waste months learning random concepts without seeing how they connect. Our interactive Knowledge Map fixes this. It shows exactly how every programming concept relates to others, helping you build a structured mental model of coding.
# 3
Copy the best. Then improve.
Here's what top engineers do that others don't: they study other people's code obsessively. When you get stuck on Hyperskill, you can explore solutions published by other developers. See their exact code. Understand their approach. Learn their tricks.
# 4
Code review that actually makes you better
We stripped code review down to what actually matters: does your solution work? Have you handled the edge cases? Is there a cleaner way to write this? Hyperskill acts like a competent reviewer who actually tests your code. Not genius-level analysis, not architecture debates — just solid feedback on making your code better.
Elevate your engineering mastery through real-world challenges
Master advanced engineering concepts through ambitious projects. Each project deepens your expertise and transforms you from an experienced engineer into an exceptional one.
University Admission Procedure (Go)
It takes a lot of hard work to enroll in the university of your dreams. Although, we tend to dismiss how difficult it is for the university to handle the document volume. In this project, you'll deal with university applicants. You'll implement an algorithm to determine which applicants are going to be enrolled. At each stage, the algorithm will gradually become more complex and comprehensive!
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JetBrains Academy
JetBrains Academy is a part of JetBrains, a global software company specializing in the creation of intelligent, productivity-enhancing tools for software developers and teams. With years of expertise in software development and education, JetBrains Academy empowers more than a million people worldwide to learn and teach computer science, and help organizations inspire their teams to reach their goals in tech. Professional development tools play a big role in computer science education. This is why JetBrains Academy courses offer integration with JetBrains IDEs. This integration assists learners in getting experience with real development processes to streamline their learning curve at future work.
Your peers think Hyperskill rocks
5 months ago
This course was very useful and practical. I liked that the projects were built step by step, which made it easier to understand each concept before moving to more complex tasks.
Paul Varner
7 months ago
I found this course to be useful for learning and understanding Go. In my opinion, the course does need to be updated to include Generics. So you do need to look elsewhere for that information until it is updated.
Mykola Chubuchnyi
9 months ago
The course was helpful to me as Java Developer to learn about using Go constructs. I can recommend this course to people with experience in other Platforms/Languages, but also for beginners as well.
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Premature Optimizationhas successfully completed the courseGo Developer
Issue date October 1, 2026
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