A Taste of Scala for Busy Java Developers

Through this lecture, you can learn about the characteristics and background of the Kotlin language, grammar and operation principles, usage examples, and things to be careful of when using Java and Kotlin together.

Toby's Clean Spring is a course designed to let you experience the process of developing a fast, stable, flexible, and maintainable system by following clean code and Spring development principles step-by-step. It follows a format similar to real-world work within a fictional startup development team that builds and operates an online education service called Splearn.

This is the first lecture in the Clean Spring series, a course designed to let you experience the process of a fictional startup development team building a fast, stable, flexible, and maintainable system by following clean code and Spring development principles in a way that mirrors real-world work. You will learn the techniques and development strategies required for the initial domain-driven development phase using the Domain Model Pattern and Hexagonal Architecture.

If you have studied the C language thoroughly and studied linear data structures, it is now time to experience the world of object-oriented programming with C++!

This is a Java course for beginners. It is designed to be easy to understand for those who are new to Java.

Why does JavaScript use Classes? How was object-oriented programming implemented before their advent? Let's take a brief journey to find answers to questions you might ponder while studying JavaScript.

Legacy Java Code, The Most Practical Way to Fix It “Without Breaking Anything” The reason refactoring is scary isn’t that you don’t understand the principles—it’s that you don’t know how much you can trust your IDE. In this course, 👉 we use only the refactorings guaranteed by *IntelliJ IDEA* 👉 to develop the sense needed to improve **production code quickly and safely**.

Through this course, you will gain a deep understanding of clean code principles and be able to write clean code based on object-oriented thinking. This course is for anyone curious about clean code and object-orientation, and everyone who truly wants to write good code.

Regardless of the field! This is a lecture that covers the core fundamentals that developers must know in practice in an easy + code-oriented way. I highly recommend this lecture to all junior developers and job seekers who want to grow.

Handling media (video, audio) on the web is now easier than ever! Learn the MediaStream API and WebRTC by following along step by step.

This is a lecture for people who are starting development for the first time. It's about programming thinking, which should come before development languages or UI frameworks.

Knowing design patterns will make it easier to learn not only Spring but also many other technologies and programming languages. It will also help you develop more flexible and reusable object-oriented software.

Learn Springboot + React RestAPI Board Creation Faster Than Anyone Develop a CRUD server with Springboot and create your own board with React!!

Channel Talk interviewers will directly analyze the difference between failing and passing answers to the same question and help you prepare for actual follow-up questions.

This course is a video lecture that systematically covers the core modern JavaScript syntax essential for learning React.js and Vue.js frontend development. It is structured to help you develop efficient coding skills through ES6+ syntax, latest features, and practical examples that can be directly applied to work and learning.

What kinds of problems appear in coding tests these days? Solve “practical” problems yourself, reflecting the latest corporate coding test trends. We provide proven problems and solutions to effectively build your algorithm and problem-solving skills. (with Java)

Learn Springboot + ReactNative RestAPI Board Creation Faster Than Anyone Develop a CRUD server with Springboot and create your own board with ReactNative!!

This is an introductory Java course. It's easy.

If you want to understand game engines, building one yourself is the fastest way. This is a project-based course where you will implement the core structure of a console game engine using C++ and complete projects including Sokoban and a flight shooting game. It provides a perspective that allows for a deep understanding of the structures of the Unreal and Unity engines.

An AI system that grades and reviews your code in just 5 seconds—imagination becomes reality. This course is an all-in-one project curriculum for creating a **'GitHub PR Auto-Analysis and Grading Bot'** using Spring AI. When a student submits an assignment (Pull Request), the server detects it, and the AI analyzes the code changes (Diff). The grading results are then stored in a database, feedback is automatically posted as a GitHub comment, and the student can check their results on a dedicated dashboard. From backend to AI integration and frontend (Vaadin), all with just Java! This is the ultimate introductory guide for any developer who wants to build their own AI service from A to Z.