var uIntArray = UIntArray(5) { 2U } var intArray = uIntArray.toIntArray() intArray[0] = 0 print(uIntArray.toList()) // [1, 1, 1, 1, 1] print(intArray.toList()) // [0, 1, 1, 1, 1] } 1. 2. 3. 4. 5. 6. 7. 8. 如上,我们通过toIntArray()创建一个新集合,新...
fun main(args: Array<String>) { val studentScores = arrayOf(45, 78, 88, 56, 90, 67, 33, 82, 58, 94) // Convert the array to a list val scoreList: List<Int> = studentScores.toList() val passingScore = 60 // Filter the list to get scores of students who passed val ...
Convert string list from JSONArray to ArrayList funJSONArray.toArrayList():ArrayList<String>{val list=arrayListOf<String>()for(iin0untilthis.length()){list.add(this.getString(i))}returnlist}val messages=JSONArray("['aaa','bbb','ccc']")messages.toArrayList() ...
// code 6inline fun<T,E>Iterable<T>.convert(action:(T)->E):Iterable<E>{val list:MutableList<E>=mutableListOf()for(iteminthis)list.add(action(item))returnlist} 3. Kotlin 中反引号 ` 的用法 在前面的《Kotlin 学习笔记(一)》 中介绍了下 Kotlin 反引号处理 Kotlin 关键字在Java代码里冲突的...
1. Convert the string “apple” to character array In the following example, we take a string and convert this to an array of characters using String.toCharArray() method. Main.kt </> Copy fun main() { val str = "apple" val chars = str.toCharArray() ...
String转JsonArray转List \”professionalWorkName\”:\”阿斯蒂芬\”,\”workContent\”:\”阿斯蒂芬\”,\”completion\”:\”阿斯蒂芬\”}”; // 字符串转JsonArray...之前要拼接上中括号 String mppArray = “[“+mpp+”]”; // 用net.sf.json.JSONA...
首先选中Java类,然后按ctrl+shift+A,弹出一个“enter action or option name”的对话框,然后输入”convert Java file to kotlin file”,就像下面的截图: 点击“Convert java File to Kotlin File”(也可以使用快捷键),IDE就自动帮我们把Java文件转换成kotlin, 一般情况下,转换出来的文件,但是不排除需要做一些修改...
val capitols = listOf("England" to "London", "Poland" to "Warsaw") capitols.forEach { (country, city) -> println("Capitol of $country is $city") } 请注意,Kotlin 通过提供一组接口和辅助方法(List与MutableList,Set与Set与MutableSet,Map与MutableMap等)区分可变和不可变集合: ...
val set = convertToSet(array) println(set) // [A, B, C, D, E] } Download Code That’s all about converting an array to a set in Kotlin. Also See: Convert a List to a Set in Kotlin Initialize a set in Kotlin Convert an array to a list in Kotlin Rate this post Average rat...
valarray:Array<Int>=list.toTypedArray() println(array.contentToString())// [1, 2, 3, 4, 5] } 下載代碼 要在兩種類型之間進行轉換,您可以使用map()功能。例如,以下代碼將 Integer 列表轉換為 String 數組: 1 2 3 4 5 6 7 funmain(){ ...