classUser{varname:StringbyDelegates.observable("<no name>"){prop,old,new->println("$old->$new")}}funmain(){valuser=User()user.name="first"user.name="second"} 输出值为: <no name> -> first first -> second 3.把属性储存在映射中 一个常见的用例是在一个映射(map)里存储属性的值。 这...
*/ public class Array<T> { /** * Creates a new array with the specified [size], where each element is calculated by calling the specified * [init] function. The [init] function returns an array element given its index. */ public inline constructor(size: Int, init: (Int) -> T) ...
KT-54136Duplicated classes cause build failure if a dependency to kotlin-stdlib specified in an android project KT-51923Improve usability of errors and warnings by being able to click on them KT-54439Project failed to sync Native LaguageSettings to compiler options in afterEvaluate ...
public abstract class Enum<E : Enum<E>>(name: String, ordinal: Int): Comparable<E>{ ... } 再来看看Comparable.kt里面做了些什么。其实里面就提供了一个方法罢了... public interface Comparable<in T> { /** * Compares this object with the specified object for order. Returns zero if this ...
Make sure that you have also updated the kotlinx libraries tocompatible versionsand specified version 1.6.20 of Kotlin in the build scripts of your existing projects. If you need the command-line compiler, download it from theGithub release page. ...
KT-64848Log K/Native compiler arguments with log level specified for compiler arguments KT-65213Collect logic for FUS metrics calculation in one place KT-61698Compiler options configured inside metadata {} target set up all targets in a project ...
In Kotlin 1.6.0, therotateLeft()androtateRight()functions, which rotate the binary representation of the number left or right by the specified number of bits, becameStable. valnumber:Short=0b10001 println(number.rotateRight(2).toString(radix=2))// 100000000000100 ...
kotlinc -Werror ./app/src/main/java/com/example/compileroptionssample/Simple.kt error: warnings found and -Werror specified app/src/main/java/com/example/compileroptionssample/Simple.kt:4:19: warning: unnecessary safe call on a non-null receiver of type String println(string?.toString()) ^...
intellij idea 卓越的 java和 kotlin体验 intellij idea凭借无与伦比的 java和 kotlin支持脱颖而出.从一开始就支持尖端语言功能,保持领先地位. 深度代码理解 intellij idea对您的代码了如指掌,利用这些知识在每个上下文中提供相关建议,实现极快的导航和智能体验. 开箱即用的无缝体验 从首次启动开始享受卓越工具集....
The first line of the above code, starting with the wordclass, is known as adata classbecause its main purpose is to hold data at the top level with no other function. At least one of the datapoints contained must be a parameter. ...