kotlin enum的八卦，YOUTUBE和 Yahoo名人娛樂都在討論：

#11. Effective Kotlin Item 41: Use enum to represent a list of values

The advantage of enum classes is that they can be serialized and deserialized out of the box. They have companion object methods values() and valueOf(String) .

#12. Enum.valueOf in Kotlin - Stack Overflow

Your function works if you specify the type parameter value explicitly: val value = safeValueOf<TestEnum>("test").

#13. Kotlin Enums Tutorial for Android: Getting Started

In short, Kotlin enums are a way to describe a set of predefined constants in your code. But what does this mean, exactly? When you're modeling ...

#14. Enum | Android Developers

Enums. CursorJoiner.Result. Exceptions ... kotlin.Any. ↳, java.lang.Enum. This is the common base class of all Java language enumeration ...

#15. 從Java 學Kotlin Enum Class | LKFJ05 - YouTube

Hi, Hank's here. 這部影片要跟各位分享從Java 學Kotlin Enum Class程式範例 https ...

#16. 枚举类(Enum Class)

除内部类(Inner class)之外, 枚举常数中不能包含嵌套类型(这个限制在Kotlin 1.2 版中已被废除). 在枚举类中实现接口. 枚举类也可以实现接口(但不能继承其他类), 可以对所有 ...

#17. Generic values() and valueOf() for enums - Kotlin/KEEP - GitHub

Generic operations on enums naturally involve retrieving all enum values or converting a string into a value. Example: // Print options on the screen fun ...

#18. ENUM

Represents a Kotlin Enum with statically known values. All enum values should be enumerated in descriptor elements. Each element descriptor of a Enum kind ...

#19. Kotlin (or Java) Enum Classes: The Good, the Bad and the Ugly

Why is this so? (Heads up: while the syntax of the code here is going to be in Kotlin, all the information here applies for Java enum classes as ...

#20. Kotlin Enum - Studytonight

In Kotlin we can create an enum class with the help of enum keyword. Kotlin enums can have properties, functions, can implement interfaces, etc. Kotlin Enum ...

#21. Enum classes | Android Development with Kotlin - Packt ...

Classes and Objects; Classes; Properties; Constructors; Inheritance; Interfaces; Data classes; Operator overloading; Object declaration; Object expression ...

#22. 【Kotlin】第10課－列舉（Enum） - 新手工程師的程式教室

【Kotlin】第10課－列舉（Enum） ... 像這種只有固定物件的類別，可以採用「列舉」（enumeration）的概念來設計。 ... enum class CurrencyType {

#23. Enum can't implement an interface with method `name()`

My guess is that types in Kotlin can't implement methods implicitly. In Java this is allowed for enums and classes.

#24. Kotlin Enum Classes - Tutorial Kart

Kotlin Enum Class. Kotlin Enum – Enum is a special data type that allows a variable to hold a value only from a set of predefined constants.

#25. Kotlin枚举班_从零开始的教程世界 - CSDN博客

kotlin 枚举In this tutorial, we'll be looking into Kotlin Enum classes. What's in store for them? How are they different from enums in Java?

#26. Forward compatible enums in Kotlin | Bright Inventions

enumkotlin serializationforward compatibility ... The client app could parse these enums and show the appropriate translated tag names.

#27. kotlin 中Enum.values() 和enumValues() 的区别 - IT工具网

kotlin - kotlin 中Enum.values() 和enumValues() 的区别. 原文 标签 kotlin enums ... enum class RGB { RED, GREEN, BLUE } RGB.values().

#28. Kotlin Enum 的Android i18n 翻译问题 - 大象笔记

我定义了一个enum 类： enum class ShelfLifeUnit { DAY, WEEK, MONTH, YEAR; 但是在真实项目中使用时，会发现如果要实现多语言版本，enum 不太好处理 ...

#29. 反向查找在Kotlin中有效的枚举？ - QA Stack

我从有效Java中获得的收获之一是，您在枚举内部引入了静态映射以处理反向查找。使用一个简单的枚举将其移植到Kotlin可使我编写如下代码： enum class Type(val value: ...

#30. Enum vs Sealed class — which one to choose? - Kt. Academy

Kotlin enums can even have methods. Their implementations are also item-specific. When we define them, enum class itself (like PaymentOption ...

#31. Enum Reverse Lookup in Kotlin | jambit GmbH

Kotlin offers the possibility to assign enumeration values to an enumeration type: enum class Currency(val symbol: String) { DOLLAR("$"), ...

#32. Kotlin Enum Class - CosmicLearn

Enums are named constants in it's most basic usage. We can declare them using the enum followed by class keywords. Enums in Kotlin can also perform complex ...

#33. Enum Classes in Kotlin

To create a type with limited values in Kotlin, you use an enumeration class… or as we more often refer to it, an enum class, or just an enum. Creating an Enum ...

#34. Kotlin Tutorial => When-statement with enums

Example#. when can be used to match enum values: enum class Day { Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday } fun doOnDay ...

#35. Kotlin入门（七）：enum，data，sealed，object - 简书

enum 类. 与java不同，Kotlin中enum当做class的修饰符使用. 1.常见用法： enum class Direction { NORTH, SOUTH, WEST, EAST }. 2.有成员属性时： enum class Color(val ...

#36. Kotlin枚举类 - 易百教程

Kotlin 枚举类. 枚举类的最基本的用法是实现类型安全的枚举 enum class Direction { NORTH, SOUTH, WEST, EAST }. 每个枚举常量都是一个对象。枚举常量用逗号分隔。

#37. How do I create an enum from a Int in Kotlin? | Newbedev

enum class Types(val value: Int) { FOO(1), BAR(2), FOO_BAR(3); companion object { fun fromInt(value: Int) = Types.values().first { it.value == value } ...

#38. 在Kotlin中使用Enums | 码农家园

随着编程语言的发展，枚举的使用和应用也得到了发展。 如今，Enum常量不仅是常量的集合，它们还可以具有属性，实现接口等等。 对于Kotlin初学者，请查看 ...

#39. Enums & Sealed Classes in Kotlin | When construct

Kotlin : Enums are meant to represent variables which can only take values from a predefined set of possible values. Kotlin Enums provides a way to declare ...

#40. Перечисления (enum) - Kotlin - Kotlinlang.ru

Перечисляемые типы. Наиболее базовый пример использования enum — это реализация типобезопасных перечислений enum class Direction { NORTH, SOUTH, WEST, ...

#41. Kotlin枚舉類 - 億聚網

枚舉類的最基本的用法是實現類型安全的枚舉enum class Direction { NORTH, SOUTH, WEST, EAST } 每個枚舉常量都是一個對象。枚舉常量用逗號分隔。 初始.

#42. Kotlin Program to Lookup enum by String value - Programiz

In this program, you'll learn to convert a string value to a enum in Kotlin using enum's valueOf() method.

#43. Kotlin Reference: Enum Classes | nex3z's blog

[code lang=”kotlin”]enum class Direction { NORTH, SOUTH, WEST, EAST }[/code]. 每一个枚举常量都是一个对象，每个枚举常量之间以逗号分隔。

#44. Dynamically creating an instance of an enum: Kotlin - Reddit

var enumClass = (Class<Enum>)Class.forName("com.example.Colours"); Enum e = java.lang.Enum.valueOf(enumClass, "RED");. I'm trying to do the same in Kotlin.

#45. Kotlin - 枚举类（Enum）、接口类（Interface）详解- Jetictors

但是对于 Kotlin 中的类的使用还远远不止那些。并且在上文中提到了关于类的类别。故而这篇文章就详细说一说 Kotlin 中的枚举类（ Enum ）、接口类（ ...

#46. Kotlin Enum Class - JournalDev

Enumerations in Kotlin are data types that hold a set of constants. Enums are defined by adding the modifier enum in front of a class as shown below. Yes, in ...

#47. Kotlin Enum Class - etutorialspoint

Enum stands for enumeration, it is a special type of class. This is used to set some predefined constants. The enum keyword is used to create an enumeration ...

#48. Parameterized tests with Kotlin's Sealed Classes

Many of us live in the Kotlin world, where we might often have cases where we prefer sealed classes to enums. sealed class Method {

#49. Kotlin: Comparing enums - Code Review Stack Exchange

You could use a bidirectional map. In Java syntax this would be: BidiMap<Type, Type> superior = new BidiMap<>(); superior.put(EARTH, ...

#50. 枚举类· Kotlin 语言官方参考文档中文版 - hltj

enum class Color(val rgb: Int) { RED(0xFF0000), GREEN(0x00FF00), BLUE(0x0000FF) } ... 枚举条目不能包含内部类以外的嵌套类型（已在Kotlin 1.2 中弃用）。

#51. 初めてkotlinを触る - Enum Classes - Qiita

初めてkotlinを触る - Enum Classes. JavaKotlinenum. 概要. 基礎; enumValuesとenumValueOf(); 各Enum定数は ...

#52. Android 中不应该使用Enum 吗？ - 掘金

和做Android 的同学们提起Enum（枚举），很多人应该就会 ... 效率低下的问题，enum 效率低下只是Android 团队散布的谣言，同时Kotlin 和Java 中的Enum ...

#53. Kotlin learning day10: enumeration and string templates

In Kotlin, enumeration uses keywordsenum, enum classcorrespondJavamiddleenum,Kotlinin,enum Also called soft keyword: When it appears before class, ...

#54. PrimitiveType (Kotlin Compiler) - javadoc.io

org.jetbrains.kotlin.builtins. Enum ... public enum PrimitiveType; extends java.lang. ... Returns the enum constant of this type with the specified name.

#55. Kotlin. enum - Освой программирование играючи

Тот редкий случай, когда в Kotlin ключевое слово enum используется до ключевого слова class. В Kotlin enum относится к разряду мягких ключевых слов (soft ...

#56. [Java] [Kotlin] Generically call valueOf and values of Enum

Java, Kotlin, enum, Generics. ... public enum PrimaryColor { RED, GREEN, BLUE } ... public static <E extends Enum<E>> E valueOf(Class<E> enumType, ...

#57. Tutorial Kotlin 22 : Mengenal Kotlin Enum Class dan Fungsinya

Kotlin enum berisikan daftar nama dari konstanta. Enumeration pada kotlin memiliki tipe khusus yang mengindikasikan sesuatu yang memiliki ...

#58. How to do reverse lookup enum constant by value in Kotlin

If we want to get the enum constant value which has the value = “logi” then we can write a simple foreach loop in kotlin to iterate over all ...

#59. kotlin : 列舉Enum Classes - HKT 線上教室

從零開始學Kotlin 程式設計: 線上影片教學課程. Android , Kotlin , 開發, 教學, 範例, 入門, 基礎, 新手, 程式設計, 課程.

#60. Rust-like enums in Kotlin - Andrej's notes

In both Python and Java individual enumerated values are singleton instances of the enumeration class. class JobState(Enum): PENDING = auto ...

#61. how to use enum in kotlin Code Example

enum class RGB { RED, GREEN, BLUE } inline fun > printAllValues() { print(enumValues ().joinToString { it.name }) } printAllValues ...

#62. Enum - Kotlin Tutorial - SO Documentation

Learn Kotlin - Just like in Java, enum classes in Kotlin have synthetic methods allowing to list the defined enum constants and to get an enum constant by.

#63. Kotlin - Enum Class Example

The most basic usage of enum classes is implementing type-safe enums: ... package net.javaguides.kotlin.examples enum class CardType { SILVER { override fun ...

#64. 枚举类

enum class Color(val rgb: Int) { RED(0xFF0000), GREEN(0x00FF00), ... Kotlin中的Enum类具有综合方法，可以列出定义的枚举常量并通过其名称获取枚举常量。

#65. kotlin - 枚举类（enum）与@IntDef @StringDef与静态常量

kotlin : 注解(Annotation)：枚举类（enum）与@IntDef @StringDef与静态常量，代码先锋网，一个为软件开发程序员提供代码片段和技术文章聚合的网站。

#66. Kotlin Enum examples - Turreta

Kotlin Enum examples · 1.1 1. Simple Enum · 1.2 2. Enum with Instance Method and Field · 1.3 3. List all Enum types.

#67. Kotlin vs Swift: implementing a method that accepts a limited ...

This also makes the compiler know the exact set of descendants of our sealed class. ... In Swift - enums. Enums in Swift are more powerful than in ...

#68. Clases enum En Kotlin - Develou

En este tutorial aprenderás a declarar clases enum en Kotlin con el fin de modelar tipos compuestos de una lista finita de valores.

#69. Kotlin when expression - ZetCode

Kotlin when enums ... Kotlin when expression can be used with enums. ... We have a Season enum. We pass the enum as the argument of the when ...

#70. Kotlin Enum Class With Examples [Latest] - All Learning

In this tutorial, we'll be looking into Kotlin Enum classes. What's in store for them? How are they different from enums in Java?

#71. Kotlin Use Enum/EnumSet as Bit Flags | Lua Software Code

Kotlin Use Enum/EnumSet as Bit Flags. December 19, 2019. kotlin. enum class Mode { IMAGE, CARD, ALBUM }. Initialize. Initialize with None.

#72. Testing Kotlin With Spock, Part 2 - Enum Instance Method

A look at how the enum instance method in Java compares to two JVM langauges used a lot in application development, Kotlin and Groovy, ...

#73. Kotlin Enum - Stone Soup Programming

Since kotlin enum classes are classes, they are free to include methods, attributes, and they can even implement interfaces. Enums are best used ...

#74. Enum example - android kotlin

android kotlin - Enum example. MainActivity.kt. package com.cfsuman.test import android.support.v7.app.AppCompatActivity import android.os.

#75. 填坑：Kotlin 枚举 - 知乎专栏

说是讲也没什么好讲的，Kotlin 枚举与Java 枚举最大的区别就是声明时多了 ... enum class Color(val rgb: Int) { RED(0xFF0000), GREEN(0x00FF00), ...

#76. Switch to when - Eugene Petrenko

'when' expression in Kotlin VS 'switch' statement in Java Switch in Java ... But if someone dares to add extra enum value, this code will ...

#77. Kotlin Enum Class Tutorial With Example - Tutorialwing

Kotlin Enum Initialization. Since each enum constant is an object of enum class, it can be initialized. Let's see an example to initialize enum ...

#78. The Programmers Guide To Kotlin - Enums & Sealed Classes

Kotlin provides enums just like Java but you need to keep in mind how they are implemented if you are to understand how to use them.

#79. Kotlin Enum with extension function | thiscodeWorks

Kotlin Enum with extension function · enum class PaymentOption { · CASH, · CARD, · TRANSFER · } · fun PaymentOption.startPayment(transaction: ...

#80. Enum & Sealed Classes - Python? add Kotlin to level up ...

Python Enums are closed classes. Summary: Working with Python Enums. Enum in Kotlin; Beyond Enum: Sealed Classes. Background. With Digital Data, ...

#81. Kotlin Enum Recipes - Artur Dryomov

Kotlin Enum Recipes. October 8, 2019. Enumerations, in a form of enum class declarations, got a bad rep on Android. In fact, the official documentation ...

#82. Language Guide (proto3) | Protocol Buffers | Google Developers

For Kotlin, in addition to the Java generated code, the compiler generates a .kt ... When you run the protocol buffer compiler on a .proto that uses an enum ...

#83. Kotlin——列舉類（Enum）、介面類（Interface）詳解- ITW01

在上一章節中，詳細的類class 做了一個例項講解，提到了類class 的例項化建構函式宣告實現方式和java 中類的區別等但是對於kotlin 中的類的使用還遠遠 ...

#84. Sealed classes in Kotlin: enums with super-powers - Antonio ...

Sealed classes in Kotlin open a new world of possibilities that will approach functional programming to you. Now here, you can learn all their advantages.

#85. Kotlin enum ordinal

Enums would be perfect for these cases, but for some unknown reason Java and Kotlin do not allow type parameters on them. Each of the enum constants acts as ...

#86. Kotlin-17.枚举类(enum class) - lioil.win - 关于

像Java一样,Kotlin枚举类也有合成方法,允许访问枚举常量: enum class RGB { RED, GREEN, BLUE } //通过名字获取枚举常量RGB.valueOf(value: String): ...

#87. Las clases enumeradas con datos asociados en Kotlin

Entonces, si por alguna razón quisiéramos emplear un enum de Kotlin, tendríamos que manejar distintos tipos de datos, aunque para este ...

#88. Kotlin enum ordinal

Kotlin enum ordinal. Working with Enum Constants Just like in Java, enum classes in Kotlin have synthetic methods allowing to list the defined enum ...

#89. 如何从Kotlin中的Int创建枚举？ - Thinbug

我有这个 enum ： enum class Types(val value: Int) { FOO(1) BAR(2) FOO_BAR(3) }

#90. C# Enums - W3Schools

C# Enums. An enum is a special "class" that represents a group of constants (unchangeable/read-only variables). To create an enum , use the enum keyword ...

#91. Pydantic enum name - Idea Sport

Enum classes in Kotlin have synthetic methods for listing the defined enum constants and getting an enum constant by its name. It also adds an Enum subclass ...

#92. Intent in kotlin stackoverflow - julioladeira.online

Enums increases readability of your code by assigning pre Activity A. mynewapp. May 26, 2020 · Kotlin Apps/Applications Mobile Development. This type of Intent ...

#93. Enums in dto

enum class Months{ January, February, March } Here are some important points about enum classes in kotlin. The custom validator tries to convert the string ...

#94. Kotlin In-Depth [Vol-I]: A Comprehensive Guide to Modern ...

The enum constants may also have a body with their own definitions. ... All enum classes in Kotlin are implicit subtypes of the kotlin.

#95. Basics Of Kotlin Programming - Google 圖書結果

6.1 Kotlin Enum Class Enum are data types that hold a set of constants. Enums are defined by adding the modifier enum in front of a class.

#96. Kotlin In-Depth [Vol-I] - Google 圖書結果

All enum classes in Kotlin are implicit subtypes of the kotlin.Enum class, which contains a set of common functions and properties available for any enum ...

#97. Hands-On Object-Oriented Programming with Kotlin: Build ...

In Kotlin, enum classes are similar to sealed classes, except that all the values of the enum class are the same type. The enum class is useful when the ...

#98. Kotlin in Action - Google 圖書結果

Along the way, we'll give you an example of declaring enums in Kotlin and discuss the concept of smart casts. 2.3.1. Declaring enum classes Let's start by ...

#99. Cracking Kotlin Interview - Google 圖書結果

enum class Months{ January, February, March } Here are some important points about enum classes in kotlin. Each enum constant is an object.