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数组转为list

//调用Arrays的asList方法.//asListpublic static List asList(T... a)返回一个受指定数组支持的固定大小的列表。(对返回列表的更改会“直写”到数组。)此方法同 Collection.toArray 一起,充当了基于数组的 API 与基于 collection 的 API 之间...

1. String[] userid = {"aa","bb","cc"};List userList = new ArrayList();Collections.addAll(userList, userid);2. String[] userid = {"aa","bb","cc"};List userList = Arrays.asList(userid);3. 循环操作数组再add 望采纳。

java数组转换成为List。 调用Arrays的asList方法. String[] arr = new String[] {"1", "2"}; List list = Arrays.asList(arr);

我就喜欢有追求的人 有 可以使用apache commons-lang3 jar org.apache.commons.lang3.ArrayUtils.toObject(int[]) 方法 先转成Integer数组 再使用 java.util.Arrays.asList(Integer...) 转成list 示例: public static void main(String[] args){...

import java.util.Arrays; import java.util.List; public class test { public static void main(String[] args) { // 字符串转list String str = "aaa,bbb,ccc"; List lis = Arrays.asList(str.split(",")); for (String string : lis) { Syst...

public static void main(String[] args) { Integer array[]={1,2,3}; ArrayList arrayList=new ArrayList(Arrays.asList(array));}

List list = new ArrayList(); String str = ""; for (Object obj : list) { str += obj; } System.out.println(str); // 或者 StringBuffer sb = new StringBuffer(); for (Object obj : list) { sb.append(obj); } System.out.println(sb);// ...

1. String[] userid = {"aa","bb","cc"};List userList = new ArrayList();Collections.addAll(userList, userid);2. String[] userid = {"aa","bb","cc"};List userList = Arrays.asList(userid);3. 循环操作数组再add 望采纳。

1,从System.String[]转到List System.String[] str={"str","string","abc"}; List listS=new List(str); 2, 从List转到System.String[] List listS=new List(); listS.Add("str"); listS.Add("hello"); System.String[] str=listS.ToArray(); 以...

String[][] datas = {{"aaa","aa1","aa11"},{"bbb","bb1","bb11"},{"ccc","cc1","cc11"}, {"aaa","aa2","aa22"},{"bbb","bb2","bb22"},{"aaa","aa3","aa33"}, {"bbb","bb3","bb33"}}; Map map = new HashMap(); for (String[] strings : datas) ...

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