Kim Young-han's Practical Java - Basic Edition

Beginners to Spring can understand the core principles of Spring and solidify their foundation in Spring by creating examples.

Learn in depth various intermediate Java functions required for practical work through example code.

You can understand and master all the web technologies required to develop web applications from the basics. You can understand the core principles and structure of Spring MVC and grow into a more in-depth backend developer.

Learn Java generics and collection framework in depth with a focus on practical use. You will also learn the basics of data structures.

Learn about multithreading and concurrency from the basics to the practical level.

Learn I/O, networking, reflection, and annotations from the basics to the practical level. Create a web application server (WAS) directly in Java.

With a practical example, we will design and develop a web application using Spring Boot and JPA. Through this process, you will understand how to use Spring Boot and JPA in practice.

Learn the core HTTP features essential for practical use and how to design proper HTTP APIs.

For those who are new to JPA or who use JPA in practice but lack basic theory, By learning the basic theory of JPA solidly, even beginners can confidently use JPA in practice.

You can understand and master all the web technologies required for web application development from the basics. In Part 2 of MVC, you can learn all the utilization technologies required for practical web development on top of the core principles and structure of Part 1 of MVC.

Develop APIs using Spring Boot and JPA. And learn how to optimize JPA's extreme performance.

You can understand and perfect the basics of DB data access technology required for backend development. You can understand the principles and structure of Spring DB access technology and grow into a more in-depth backend developer.

You will learn the core principles and advanced technologies of Spring in depth and be able to use Spring confidently.

Solve everything from the basics of querydsl to practical use all at once!

This course will cover everything you need to know about Spring Boot for practical use.

You can utilize and complete the DB data access technology required for backend development. You can understand the principles and structure of Spring DB access technology and grow into a more in-depth backend developer.

Spring Data JPA goes beyond the limitations of the past and allows you to complete development with just an interface, without implementing classes in the repository, as if by magic. It also provides all the basic CRUD functions that have been developed repeatedly. We will share practical know-how on Spring Data JPA.

Beginners to Spring can quickly learn the entire Spring web application development process by creating examples.

This is a Java tutorial for beginners in programming. You can easily learn Java by following the code.

Learn Java generics and collection framework in depth with a focus on practical use. You will also learn the basics of data structures.

Learn in depth various intermediate Java functions required for practical work through example code.

For those who are new to JPA or who use JPA in practice but lack basic theory, By learning the basic theory of JPA solidly, even beginners can confidently use JPA in practice.

Solve everything from the basics of querydsl to practical use all at once!

Beginners to Spring can understand the core principles of Spring and solidify their foundation in Spring by creating examples.

What types of questions are on coding tests these days? Solve the “real-world” problems that reflect the latest corporate coding test trends. We will provide you with proven problems and solutions that will effectively develop your algorithm and problem-solving skills. (with Java)

This is a basic DFS lecture that explains the way a liberal arts major and working developer studied to get a job :) We have prepared a lecture where you can learn by solving problems yourself, with minimal boring theory lectures! After taking this lecture, you will be able to solve silver level DFS problems on your own according to Baekjoon standards.

Experience the power of Type Safe SQL with jOOQ!

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

If you've studied the basics of grammar, you'll naturally want to make something, right? This lecture helps novice C++ programmers become proficient in object-oriented programming while creating simple games. We provide the 'minimum' code that allows you to start game programming on your own and teach you the know-how of object-oriented programming that you could not have mastered just by studying grammar. Have fun creating and quickly jump to the intermediate level and beyond!

An era where even IT beginners can become "CEOs of their own platform" with just one idea, using AI and GnuBoard! We will demonstrate the actual development process from planning to distribution, and teach you various monetization methods such as advertising and shopping malls. Start your online business now!

This course is for those preparing for coding tests in Java. It covers the top 10 topics that are most frequently tested in coding tests. It is structured step by step from basic to intermediate problems linked to the topic, so if you follow it step by step, you will get good results.

Learn Java-based data structures and algorithms, and grow into a competitive coding expert with practical problems!

This is a Unity C# scripting course for absolute beginners who are learning programming for the first time. It was created by carefully selecting the core grammar necessary for utilizing Unity scripts.

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.

Through this lecture, you will gain a deep understanding of clean code principles and be able to write clean code based on object-oriented thinking. This lecture is for anyone who is curious about clean code and object-oriented programming, and for anyone who really wants to write code well.

Refactoring is one of the basic skills that a software engineer should have. This course is designed to explain and practice various code smells and refactoring techniques in a more practical way using IntelliJ and Java.

Using Python, you will learn about the features of each service and how to implement bots through various examples, such as Telegram bot, Slack bot, KakaoTalk chatbot, and Discord bot.

Through the 25 patterns of OODP, you will learn various methods of designing software in an object-oriented manner.

Learn the process of application development/release/update all at once through the Android Brainwashing Classroom. Learn the basics of JAVA and learn the distribution and update process while actually building an Android app. Implement the core functions of In★Gram yourself through practice. You can get started even if you don't know programming.