Easy and fun Python story from a professional instructor! For beginners, we will proceed with the lecture step by step. We will provide opportunities to learn through sufficient repetition. It will be a solid stepping stone for those who are learning Python for the first time.

This is a basic grammar lecture for those who do not have a basic knowledge of programming. Rather than reading the contents of a rigid book, this is a beginner-friendly lecture where you can watch the video and follow along with your own interpretation of why it was created.

This course is an intermediate level program for developers who want to gain a deeper understanding of C# .NET. Beyond simple syntax explanations, it dives into the internal workings of the compiler and runtime. It will be particularly helpful for developers who wish to understand the internals of the C# language in greater depth.

You can systematically learn stock trading automation using Python and the Interactive Brokers API, which holds the top spot in global market share.

Can't we learn only the essentials when we start? Can't we learn while making games ourselves and having fun? After much thought, I published the book 'C# Programming for Beginners' and prepared a lecture with more know-how and detailed explanations based on it.

If you have studied basic grammar, you naturally want to try making something, right? This is a lecture designed to help beginner C++ programmers become proficient in object-oriented programming by creating simple games. We provide the 'minimum' code needed to start game programming on your own and share object-oriented know-how that cannot be mastered through grammar study alone. Have fun creating and quickly leap to an intermediate level or beyond!

Through the 25 patterns of OODP, you will learn various ways to design software in an object-oriented manner.

Learn various design principles needed to write object-oriented code, focusing on working code.

When learning Swift, the iOS programming language, it can be confusing when multiple concepts appear all at once. That's why I created this course with the principle that "when understanding a new concept, only previously learned concepts should be used." So this course is meticulously designed with a sequential structure between concepts, where only one new concept appears at each stage, and no other unfamiliar concepts appear at all. One concept per minute, 180 concepts total. From the basics of variables and constants to understanding memory structure from a CS perspective, and even the latest syntax for asynchronous processing. In 3 hours, you'll learn 180 core concepts in the designed order.

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.

Scala allows you to write much more concise and robust code quickly, while still leveraging the experience you have gained as a Java developer. This course is designed for Java developers to quickly understand the overall look of Scala based on their existing Java knowledge. If you are an existing Java developer, you can learn Scala very easily.

In this course, you will learn Kotlin syntax, how to safely convert Java projects to Kotlin, and how to code in a Kotlin-like manner. Learn Kotlin based on practical code and use it yourself to enjoy its advantages.

You can learn the basics of React. You can organize HTML, JavaScript, DOM, Event, Object, Module, OOP, etc. related to React.

Many developers say they have learned object-oriented programming. However, in reality, most only know the "syntax" of classes, inheritance, and polymorphism. This lecture is not a syntax explanation. ✔ Why did object-oriented programming emerge? ✔ What is an object, and why is 'responsibility' important? ✔ Why does polymorphism create scalable structures? ✔ How does object-oriented programming connect to computer science? I will summarize the "real object-oriented thinking" I felt while personally experiencing system design in just 30 minutes. Through this lecture, you will come to understand object-oriented programming not as a 'coding style,' but as a 'design strategy for controlling complexity.'

This is an introductory Java course designed so that even those starting programming for the first time can follow along. You will systematically learn everything from JDK 21 environment configuration to variables, data types, control flow statements, arrays, strings, and the core concepts of Object-Oriented Programming (OOP) such as classes, inheritance, polymorphism, and exception handling. Rather than simply listing syntax, we explain "why it works this way" to help you build a solid foundation.

You can solve design problems by writing code in a formatted way. You can understand code or patterns written by other programmers.

When learning Swift, the iOS programming language, it can be confusing when multiple concepts appear all at once. That's why I created this course with the principle that "when understanding a new concept, only previously learned concepts should be used." So this course is meticulously designed with a sequential structure between concepts, where only one new concept appears at each stage, and no other unfamiliar concepts appear at all. One concept per minute, 180 concepts total. From the basics of variables and constants to understanding memory structure from a CS perspective, and even the latest syntax for asynchronous processing. In 3 hours, you'll learn 180 core concepts in the designed order.

If you use JS but find it difficult to explain why it works, this course provides the answer. From execution context, closures, and the event loop to Promise concurrency, prototypes, Virtual DOM, memory leaks, and bundle optimization—you won't just read about 18 chapters of advanced JS concepts; you'll learn by seeing them happen right before your eyes with a simulator. Code-based quizzes are provided for every chapter, and you can own it for life for the price of a single chicken dinner.

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.