kotlin training

Kotlin (1) Build the Kotlin development environment and kotlin As a programming language, Kotlin has been around for several years, but it is not well-known in China. Since Google announced it as the official Android development language in May, Kotlin has suddenly become po

Kotlin is 100% interoperable with Java™and android™ In the previous chapters, we've learned about Kotlin's basic syntax, type systems, generics and collection classes, object-oriented and functional programming, and in the previous chapter we saw the lightweight concurrency programming model provided by Kotlin: the related content of the coprocessor. From the beginning of this chapter to the later chapters,

: Data points (Android Developers curious about Kotlin): @ trello is now happy to use @ kotlin in development. -Dan Lew (@ danlew42) December 14,201 6 On the Kotlin website, you can see that more and more companies are using Kotlin for development in their products without any trouble. 8. Companies are requesting to

Directory Introduction website and document Chinese Community Tutorials Articles Open Source Library and framework Demo Other introduction Why do this. On Google I/O this morning, Google officially announced official support for Kotlin. In order to let everyone faster understanding and hands-on Kotlin, here for everyone to tidy up this kotlin resources, hope can

Use Kotlin to develop Android and kotlin to develop android Check out all my open-source projects [open-source lab]Welcome to my QQ group: [201055521]. Please click to download the source code of this blog client]Summary I first declared that I didn't use Kotlin for a long time. I wrote these articles almost simultaneously. I didn't try any other alternative lan

In this article we will learn the basic syntax and common operation Basic types of Kotlin by analogy with Java syntax Java Kotlin bit width Double Double 64 Float Float 32 Long Long 64 Int Int 32 Short Short 16 Byte Byte 8 Note: Char is not a basic data

Elimination of function overloading in the Kotlin series and kotlin function Overloading I. Problems Caused by function Overloading 1. Problems Encountered Whether in Java or C ++, function Overloading is used to expose interfaces with different parameters, including the number of parameter lists and parameter types, to meet service requirements of different functions, parameter order. However, different

KOTLIN development language documentation (official documentation), kotlin development language Web link: https://kotlinlang.org/docs/reference/basic-types.html2. Basic Concepts 2.1. Basic Types From the perspective of Calling member functions and attributes in any variable processing, everything in the Kotlin development language is an object. Some types are emb

Kotlin series: top-level functions and attributes, top-level functions of kotlin Series Let's take a look at top-level functions and attributes in Kotlin today.Problems encountered As we all know, in Java, all codes exist based on classes. Our so-called Functions Act as class methods, and our so-called attributes act as class attributes. However, in some cases,

Kotlin series exceptions and Kotlin Series Issues In this section, we will talk about exceptions in Kotlin.Java exceptions We know that exceptions in Java are an endless topic. When talking about exceptions, the first thing that comes to mind isTry... catch... finally is the same in Kotlin. The usage is almost unchanged, but there are also some small changes. He

How to convert code from Java to Kotlin: Now you can use Kotlin (KAD 29) and kotlinkad By Antonio Leiva Time: Jul, 4, 2017 Link: https://antonioleiva.com/kotlin-from-java/ One of the most amazing features of Kotlin is its ability to fully integrate with Java. This means that although all the code of your application

The first kotlin project and the first kotlin Project How to Use Kotlin in Android Studio? 1. Use the Android Studio plug-in 2. Upgrade Android Studio to version 3.0: it is not recommended currently, because version 3.0 is still in the Dev Channel, that is, the development Channel, and has not yet been officially released. So today we will talk about how to creat

Introduction to Kotlin syntax and kotlin syntaxKotlin syntax Kotlin is toxic and addictive when used ...... A little exaggerated. It was actually used to write a demo that records POI and tracks. However, the syntax is really concise. Here, Kotlin is different from Java, or it has more concise and elegant syntax and fe

Kotlin series: extended functions and attributes, and kotlin series extended functions Extended functions and attributes can be added based on existing classes, but these functions and attributes are defined outside the class. Are you curious? Let's take a look.Extended Functions Let's use an example to analyze and add a member function to the String class.LastChar, used to obtain the last character of a s

The path to kotlin growth and the path to kotlin Learning Preface: Starting from Kotlin, that is, my decision to start writing a technical blog today, I have a poor literary talent. Thank you for your understanding and guidance. This article is my guide to Kotlin growth for the most bloggers. Therefore, the content i

Kotlin class and object, and Kotlin Class Object InheritanceClass Use the class keyword to declare a class in Kotlin class Invoice { } The class Declaration consists of the class name, Class header (specifying its type parameter, main constructor, etc.), and the class body surrounded by curly brackets. Both the Class header and class body are optional.

Kotlin Series 5 --- data class, seal class, internal class details, kotlin --- Summary: kotlin has been learning for a while. It takes a little time to look at it every day. It will take a long time to forget it. It is only necessary to sort it out again, in this article, we will sort out the basic usage of several categories, which are roughly the same as thing

Talking about Kotlin (III): Class, talking about kotlin Kotlin (1): Introduction and configuration in Android Studio Kotlin (2): basic types, basic syntax, and code style Talking about Kotlin (3): Class Preface: I have learned the first two articles and have a basic underst

1 Creating a new projectAndroid Studio creates a new project with only one empty mainactivity2 Installing KotlinFile-seeting-plugins-install jetbrains Plugin input Kotlin installation,If the installation fails, open the C:\Users\ user \. Androidstudio2.3\system\log\idea.log "This file, find KotlinHttp://plugins.jetbrains.com/pluginManager/?action=downloadid=org.jetbrains.kotlinbuild= ai-162.2228.14uuid=6b417889-78a8-4cc8-ac6c-3e8d64c5a56cDownload to d

Kotlin data class: saves a lot of lines of code (KAD 10) and kotlin many lines By Antonio Leiva Time: Jan 25,201 7 Link: https://antonioleiva.com/data-classes-kotlin/ In the previous article, we have seen classes, and data classes can further help us simplify code. What is a data class? DataIs an action that only contains the status and does not have any exec