2018.11.3btn_for_index.setOnClickListener {var desc = ""for(i in goodsMutList.indices){val item = goodsMutList[i]desc = "${desc}name: ${item}\n"}tv_list_result.text = "l

2018.11.2btn_set_for.setOnClickListener {var desc = ""for (item in goodsMutSet){desc = "${desc}名称： ${item}\n"}tv_set_result.text = "lalala\n$desc"}btn_set_iterator.set

2018.10.9class ResourceID(){val image_id: String = "101"val text_id: String = "102"}class ResourceLoader(id: ResourceID){val d: ResourceID = idoperator fun provideDelegate (thisRef: MyUI, prop: KPrope

2018.12.3rivate fun traverseJson(jsonStr: String?): String{var result = ""var obj = JSONObject(jsonStr)val it = obj.keys()while(it.hasNext()){var key = it.next().toString()result = "${result}ke

2018.11.4btn_map_for.setOnClickListener {var desc = ""for(item in goodsMutMap){desc = "${desc}厂家： ${item.key}，名称： ${item.value}\n"}tv_map_result.text = "jjj: ${goodsMutMap.size}: \n$desc

2018.11.28private fun getNotifyExpand(ctx: Context, event: String, song: String, isPlay: Boolean, progress: Int, time: Long):RemoteViews{val notify_expand = RemoteViews(ctx.packageName, R.layout.activ

2018.10.22var str = "kotlin"var result = str.takeIf {it.startsWith("ko")}println("result = $result")result = str.takeUnless {it.startsWith("ko")}println("result = $result")repeat(5){println(

2018.10.23fun main(args: Array<String>){val list1 = listOf(1,2,3,4,5)println("-----any-----")println(list1.any())println(list1.any{it>10})println("-----all-----")println(list1.all{it>2})pr

《Java语言程序设计与数据结构》编程练习答案（第二十五章）（一）英文名：Introduction to Java Programming and Data Structures, Comprehensive Version, 11th Edition25.1public class book {public static void main(String[] args) {Scanner inp

P21略P22a)