learn kotlin

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

printSum(a: Int, b: Int) { a3. Main functionArrayString{}4. If condition statementmax(a: Int, b: Int): Int { if(a>b) returna else return b}Simplified notationmax(aif (aaelse b5. Use nullable variables and null values to checkSwift has a type of optionalKotlin also has this type of operationparseIntString): Int?{}It is possible for the function to return an int and possibly return nullSo null judgment is required for useArrayString>) { parseInt(args[0]) pa

implemented by using functions as parameters, some cannot be called syntax, but functions are nested, infix function call,lambda, function parameters, variable argument lists, flexible tags, powerful return, automatic type judgments, Range,iterator, operator overloading, omitting, template ... These are too many features that cause Kotlin's syntax to dazzle, though sometimes it may seem elegant, but it can also cause great difficulty in reading the code.End this article with a piece of code wit

Data Class The data class is a special class in Kotlin, and its particularity is shown in the following aspects: The primary constructor of the data class requires at least one parameter; All parameters of the main constructor must be decorated with Val or var; The data class cannot be abstract, open, sealed, or internal, meaning that the data class can only be final; Before Kotlin 1.1, the data class coul

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,

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

language, but Koltin is perfect for me as a common-code farmer. My request is not high, give mouth rice to eat on the line, know? Scala is good, but it's too good to be true, like a bullfrog's brain truffle snail. To know that I am a blue collar, Clojure, Scala language is too big for me.It took me about 3 days to learn the grammar of Kotlin, and then I began to formally program it, although I was still ve

language itself.Why is Kotlin used? If a programming language is not enough to change your programming thinking, it fails. We are familiar with static languages such as C, Obj-C, and JAVA. It is time to learn dynamic languages such as Swift, Go, and Kotlin.The second reason is that Kotlin can indeed omit a lot of coding and its unique language features.The third

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

the subjective perspective of this problem, I would like to see this phenomenon happen. The reason is not because I prefer kotlin, but because I prefer to see things progressing and becoming excellent, so even if one day Kotlin be replaced by a better language, I am very welcome.Who is right for the first application KotlinKotlin is suitable for multiple platforms and does not restrict learners. Anyone wit

installing the Kotlin plugin into Android Studio and creating your first Kotlin application. For more in-depth introduction, please check the site's reference documents and Kotlin heart print. Another good resource is Kotlin for Android developers, which guides you through the process of creating a real Androi

prefer kotlin, but because I prefer to see things progressing and becoming excellent, so even if one day Kotlin be replaced by a better language, I am very welcome.Who is right for the first application KotlinKotlin is suitable for multiple platforms and does not restrict learners. Anyone with a willingness to learn can acquire the language.However, considering

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

Now I am using Kotlin to develop Android for 12 reasons (KAD 30) and kotlinandroid By Antonio Leiva Time: Jul, 11,201 7 Link: https://antonioleiva.com/reasons-kotlin-android/ This group of articles has reached the end, and they are very practical. Today I want to talk about why I think it is very interesting to learn Kotli