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초급
Design Pattern, Java
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.
A catalog of 24 code smells and 7 refactorings
43 refactorings shown in Java example code and practiced directly
Refactoring related features provided by IntelliJ
Beyond simple implementation
For all developers who want to create better code 💌
Refactoring
You can change several programming elements such as classes, functions, and fields while maintaining the functionality of the code to make it better.
It refers to the process or technique of improving code. If you learn and apply refactoring,
Even code that behaves the same can be made more understandable and flexible.
Assumptions that seemed unchangeable and code that was initially thought to be the best, as time passes, environments change, and technology advances, it's very likely that you'll find yourself asking, "Why on earth did they write the code like that?"
You'll learn how to find such code through 24 code smells covered in refactoring, and how to improve your code through over 43 refactoring techniques.
I guarantee that after this class, when you look at your code again, you will definitely be able to fix it to make it better.
IntelliJ
Integrated development environments (IDEs) such as IntelliJ, unlike simple editors, have advanced computational and analytical capabilities.
It provides several features to help with code refactoring.
By leveraging the features introduced in this lecture, you can also improve your code productivity.
I learned basic grammar
What should I do now?
Than now
Become a better developer
If you want to grow?
With better code
I want to improve …
Smelly code
How to improve
If you want to know?
IntelliJ
I want to write better …
100% refactoring functionality
If you want to use it?
Refactoring?
I really want to see it …
Refactoring in text
While watching
If you want to learn?
📢 Please be informed
This course covers 24 code smells and several refactoring techniques to address each smell.
Each refactoring technique actively leverages the capabilities provided by IntelliJ and provides example code so you can practice it yourself.
Refactoring is The first edition was published in 1999 and the second edition came out in 2018, along with GoF's book "Design Patterns".
This is one of the must-reads I recommend to all developers.
This is a skill that will be useful in your work at any time, past, present, and future, so please be sure to learn it.
Refactoring (2nd Edition)
Amazon rating: 4.7/5
8th in Object-Oriented Software Design (as of February 2022)
One of the recommended books for all developers
Martin Folwer
Object-oriented analysis and design, UML, enterprise patterns, and
With several writings and presentations on extreme programming,
famous software engineer
📢 Please note
Q. Is it absolutely necessary for developers to learn refactoring?
A. If you're a developer who doesn't just think, "It just has to work," but rather, "How can I make my code work better?" Learning refactoring is a must. The techniques covered in this course will significantly improve the quality of your code.
Q. When should I refactor? I don't have time for refactoring in my work.
A. Refactoring can be scheduled, or it can be done concurrently with writing new code or modifying existing code to improve or change functionality. For example, I have a frequently used class at work that, after five years of accumulation, has grown so large that it's starting to smell like code. After completing that task, I take some time to "extract methods" and "parameterize methods" to remove a significant amount of redundant code, create a more readable version, and submit it for code review. Rather than making a large change all at once, making small, frequent changes allows for gradual improvements without a long wait.
Q. I have only studied the basics of Java. Can I still take this course?
A. Yes, if you've learned the basics of Java, you can take this course. In particular, if you're unfamiliar with IntelliJ, I highly recommend learning the IntelliJ refactoring features introduced in this course and applying them in your work. There are many tips waiting to boost your productivity.
Q. I'm wondering if the difficulty level and format of the lecture are right for me.
A. We've provided previews of the "Unintelligible Names," "Changing Function Declarations," and "Changing Variable Names" lessons for this course. Please review these lessons before registering to determine whether this approach will be helpful to you.
"If you work as a developer, you've probably heard someone compare code to 'poop' at least once. This kind of code slows down work and makes it difficult to respond to changing requirements.
Refactoring is a way to cleanly and safely organize this code , making it more readable and more agile. We hope you'll use refactoring to beautify your project's code.
Who is this course right for?
Developers or students who are new to refactoring
Developers or students who want to learn how to improve their code with better code.
Developers or students who want to use IntelliJ better to increase their productivity
Need to know before starting?
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