To speak frankly, this year I have intentionally or unintentionally rejected many meaningless advertisements, such as financial management and various disorganized online courses. I have also been taking the time to learn some additional skills. In my public account, I have mainly promoted some professional IT courses from “Geek Time,” and they are free promotions. There isn’t too much reason for this; these courses are genuinely good and worth joining. For example, this new work by “kymjs Zhang Tao.”
As a Java developer, you must be very familiar with the core concepts of object-oriented programming. Java is a purely object-oriented language. If you want to write a function in a Java project, you first have to define a class and then write the function inside that class. Doing this once or twice is fine, but if you keep doing this for object-oriented programming in a medium to large project, it will not only lead to code redundancy and make it hard to read, but it will also easily lead to errors. Moreover, I believe you have also encountered null pointer exceptions and felt frustrated by the inevitability of this issue.
Kotlin can help you effectively solve the problems mentioned above. Kotlin itself extends many commonly used operations, such as text reading and writing, folder traversal, timer scheduling, and stream operations on collections (similar to RxJava), which are not available in Java. At the same time, Kotlin’s inline high-order lambda, dynamic proxy, and coroutine features can significantly optimize your code performance.
If you are an Android developer, mastering Kotlin is even more important for you, as Kotlin is widely used in the source code of Android P, Gradle source code, and the Android Jetpack library.In the near future, not knowing Kotlin will severely affect your ability to read source code (or even make it impossible to understand).
In fact, the use of Kotlin is not limited to Android development; it also includes server programming and cross-platform development for front-end React applications.It can be said that anything Java can do, Kotlin can do, and even do it better.
Especially sinceat the 2017 Google I/O conference, Google announced Kotlin as the official programming language for Android development, the Kotlin developer community has been growing rapidly. According to the 2018 Stack Overflow Developer Survey, Kotlin ranked as the second most popular programming language. In Silicon Valley, well-known companies like Netflix, Slack, Pinterest, and Lyft have already adopted Kotlin. It can be said that 2018 will see the explosion of Kotlin.
This also means thatfor Java programmers and Android application developers, merely mastering Java is not enough; you should also learn Kotlin to keep up with the trend of technological development and work more efficiently.
Therefore, I have collaborated with Geek Time to launch the “Quick Start Kotlin Development” course, aiming to help Java/Android developers efficiently master the foundational knowledge of Kotlin and the key points needed in practical applications, enabling them to use it in their work.
Author Introduction
I am Zhang Tao, the founder of the “Open Source Laboratory,” and a senior Android development engineer with 6 years of Android development experience. At the same time, I am also a technical evangelist for Kotlin, and I can say that I am one of the first developers to use Kotlin, witnessing its growth from early pioneers.
Throughout my years of work, I have led the development of apps with millions of users, implementing the migration of the programming language to Kotlin. Of course, I have also led teams, worked on architecture, written applications, contributed to open source communities, and have been invited to share about Kotlin at technical conferences such as GMTC, QCon, and Droidcon. Therefore, I have very rich practical experience in this area.
I hope to share my years of Kotlin development experience with you, helping you master an additional skill on your programming journey, thus providing you with more choices and better development opportunities.
Course Introduction
This course is divided into three parts.
The first part will help you quickly familiarize yourself with Kotlin’s unique syntax features and how to resolve conflicts with Java projects.
The second part will take you deep into understanding Kotlin’s advanced features and the underlying principles behind Kotlin’s unique syntax, while mastering the use and internal implementation principles of the Kotlin coroutine library and the KTX extension library introduced by Google.
The third part will explain the characteristics of Kotlin as a cross-platform language and introduce the considerations when migrating Java projects to Kotlin, allowing for a deeper understanding of Kotlin’s advantages and disadvantages, and how to flexibly utilize Kotlin’s extension libraries and cross-platform features to help teams develop actual projects more efficiently.
Through this course, I hope you will not only be able to easily handle various issues arising from the coexistence of Kotlin and Java but also confidently address the “pits” that may arise when migrating old Java projects to Kotlin.
At the same time,I will guide you to think from a macro perspective about the various advantages and disadvantages of the Kotlin language, learning how to choose the appropriate language and technology for your team, and be able to use Kotlin more efficiently for cross-platform development and collaboration.
Below is the course directory, and I believe every lesson is worth your repeated learning.
Subscription Benefits
Benefit 1:Limited time discount price ¥68, original price ¥129, will return to the original price on July 21
Benefit 2:For every friend you invite to purchase, you can receive a cash rebate of 24 yuan, the more you invite, the more you earn, with no upper limit, and you can withdraw immediately(Withdrawal process: Geek Time App – My – Share with rewards)
Subscription Method
Long press to recognize the QR code in the image (long press ineffective, click to open and then long press to recognize the QR code) to subscribe.
Great courses, you deserve to have. The course is newly launched, limited time discount, come join us to learn together.