Java Grammar Summary - 1 Hour

Jetpack Compose is Android's modern toolkit for building native UIs. Build apps quickly and vibrantly with less code, powerful tools, and intuitive Kotlin APIs.

Master complex Flutter state management in just 3 hours.

"Are you still modifying your code every time you change the server address?" In professional practice, Development (Dev), Staging, and Production (Prod) environments are strictly separated. However, many developers still manually change variables within a single main.dart file, exposing themselves to the risk of deployment errors. This course covers a 'true professional-grade architecture' that allows you to switch environments instantly just by selecting a build target, without modifying a single line of code.

A practical course where you build a production-level app from scratch. Learn how to develop scalable and maintainable apps by applying Clean Architecture and the MVVM pattern.

This lecture explains unit testing, UI testing, and integration testing methods in Flutter based on the official documentation.

This is a comprehensive lecture on Kotlin grammar that can be learned in 1 hour.

This is a guide course on proper dependency injection in Flutter. It presents how to use DI utilizing the injectable package.

This course is designed for everyone starting Flutter to quickly learn the Flutter basics.

You can experience an example of implementing an app with clean architecture, including caching techniques using a local DB, CSV parsing, and custom drawing using Canvas.

You will learn how to write better, more maintainable code by applying clean architecture to your Flutter apps. This is a must-have course for intermediate and above level learners.

If you have started Java development but feel overwhelmed when trying to solve a problem, it is time to study design patterns. I will explain 10 of the GoF design patterns that I personally use the most.

In this course, you will learn various methods for developing reactive and flexibly scalable Android apps by utilizing Kotlin and various Jetpack libraries widely used in the industry.

You will learn Flutter app development by building a public mask inventory app, applying the MVVM pattern (one of the most commonly used patterns in smartphone development), and adding features.

This introductory Flutter course lets you code once for Android and iOS.

Learn “Effective Java,” the ultimate Java learning guide, more easily and completely. By taking this course, you can improve not only your Java programming knowledge and skills, but also your learning ability.

Learn Java programming language by solving 100 problems. The entire course consists of 5 parts. In Part 1 of this course, you will solve problems on the topics of environment settings, variables, data types, and operators.

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.

This course is a process of learning the basic theories of data structures by directly implementing them using JAVA programming. It is designed to go beyond simply learning theory, allowing you to gain a deeper understanding of the principles of data structures by implementing them with actual code. Learners will theoretically study core data structure concepts such as arrays, stacks, queues, lists, trees, and graphs, while simultaneously experiencing the actual operation process by implementing them in JAVA code. Through this, you can develop logical thinking and problem-solving skills rather than simple rote learning, and enjoy the synergistic effect of mastering both programming and data structures together. 👉 Upon completing this course, learners will master the basic concepts and structural characteristics of data structures, as well as the ability to implement and apply them in real-world development environments, building a foundation for designing more efficient and robust programs.

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)

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

This course explores MSA design patterns, implementation strategies, and various content crucial for microservice application development. You will acquire core knowledge and practical methods for successfully converting existing monolithic applications to MSA. You will analyze diverse design patterns underpinning microservice architecture, learning their suitable contexts and application methods.

From small projects to practicing structure building! A hands-on, mini-project-based introductory course for those who lack experience in Java object-oriented design and practice. From the basics to structural thinking, improve your skills by implementing a Java application from start to finish.

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.

We enable you to fundamentally understand and resolve issues where Hangeul appears broken on web pages or in databases, or files contain unknown characters.

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.

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.

Currently, Android can be developed using the Java and Kotlin languages. The same Android application can be developed using either language. This course covers most of the content from basic to advanced Android application development, and all code is written using the Kotlin language starting from the basic content. We also use Material 3, Google's latest UI library. This course mainly covers menus, Android application components, threads, and Fragments among the entire Android curriculum, and future courses are planned to cover more in-depth topics. Soft Campus will always strive to provide the latest lectures. Thank you.

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

The TDD & Clean Code masterpiece lecture, recommended by many senior developers in Korea to junior developers for over a decade.

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.

Baekjoon Bronze 4·5 Difficulty Algorithm Beginner Roadmap Starting with 3-4 Problems Daily

IntelliJ IDEA Conf 2025 is an annual online conference hosted by JetBrains that provides valuable sessions for Java and Kotlin developers. It covers various topics including AI adoption, Spring Boot, Gradle, Kafka, database management, and also shares insights on cloud integration, secure coding, developer performance improvement, and advanced development techniques. This conference is open to both professional and beginner developers, offering opportunities to explore the latest technologies along with productivity tips for writing high-quality code faster.

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.

If you can master DB and programming, you should be more than halfway prepared for the information processing engineer exam. Let's take a look at the DB and programming parts, which are worth 45 to 55 points in the practical exam, and pass the written exam steadily.