Detailed introduction to Kotlin

How to implement static methods in Kotlin similar to those in Java or C#. This article summarizes several methods, namely: package-level functions, companion objects, extension functions and object declarations. This requires everyone to choose according to different situations. You can find many such articles on the Internet. The official recommendation is package-level functions, and some people say to use companion objects (companion class). These are good options, but they're not perfect, and we have better options in different situations. I have summarized several methods, namely: package-level functions, companion objects, extension functions and object declarations. This requires everyone to choose according to different situations. 1. Package-level functions The difference between Kotlin and Java and C# is that functions can be declared directly in the package. The method is the same as in the category, so I won’t go into details here. It is indeed a very good choice. It is suitable for functions that do not need to include internal classes for data sharing. 2. Companion object Semantically speaking, companion functions are most similar to static methods in Java, so companion objects can completely implement all the contents of static classes in Java. But using static methods in Java is sometimes no choice. Accompanying it in Kotlin

1. Details on how to implement static methods in Kotlin similar to those in Java or C

# Introduction: How to implement static methods in Kotlin similar to those in Java or C#. This article summarizes several methods, namely: Package-level functions, companion objects, extension functions, and object declarations. This requires everyone to choose according to different situations.

2. Summary of Kotlin syntax learning--variable definition, function expansion, Parcelable serialization

Introduction: This article mainly introduces Kotlin syntax learning-variable definition, function expansion, Parcelable serialization and other briefly summarized related information. Friends in need can refer to it

3. Detailed comparison of the basic syntax of Java and Kotlin

# #Introduction: This article mainly introduces the relevant information on the comparison of the basic syntax of Kotlin and Java. Friends in need can refer to

##4.

What is it like to rewrite a PHP program with Kotlin? Experience

Introduction: What is it like to rewrite a PHP program with Kotlin

[Related Q&A recommendations]:

java - Could not initialize class NewKotlinActivityAction?

android-sdk - I want to learn android app, what language should I learn? ?

The above is the detailed content of Detailed introduction to Kotlin. For more information, please follow other related articles on the PHP Chinese website!