当使用如下代码将List转换为Array类型时: List<String> list = new ArrayList<>(); String[] array = list.toArray(new String[list.size()]); 会出现提示 Call to 'toArray()' with pre-sized array argument 'new String[list.size()]' Inspection info: There are two styles to…
/* * Java Bittorrent API as its name indicates is a JAVA API that implements the Bittorrent Protocol * This project contains two packages: * 1. jBittorrentAPI is the "client" part, i.e. it implements all classes needed to publish * files, share…
1.数组转List String[] arr = new String[]{"A", "B", "C"}; List list = Arrays.asList(arr); //返回固定大小,不能做add和remove等操作 2.数组转Set String[] arr= new String[]{"A", "B", "C"}; Set<String> set= new Hash…
1.List转Array ArrayList<String> list=new ArrayList<String>(); String[] strings = new String[list.size()]; list.toArray(strings); 2.Array转List String[] s = {"a","b","c"}; List list = java.util.Arrays.asList(s);…
difference among String,StringBuilder,StringBuffer String常用构造函数 String(byte[] bytes) String(byte[] bytes, int offset, int length) String(char[] value) String(char[] value, int offset, int count) String(int[] codePoints, int offset, int count) String(…
欢迎訪问:个人博客 写该系列文章的目的是记录Guava源代码中个人感觉不错且值得借鉴的内容. 一.MoreObjects类 //MoreObjects.ToStringHelper类的toString()方法:对于字符串拼接的写法蛮不错的,此前本人一直用比較挫的方式:无论三七二一,先拼接然后再subString() @Override public String toString() { // create a copy to keep it consistent in case value c…
Like the toArray() method, this method acts as bridge between array-based and collection-based APIs. Further, this method allows precise control over the runtime type of the output array, and may, under certain circumstances, be used to save allocati…
list.set.map.array间的相互转换 list转set Set set = new HashSet(new ArrayList()); set转list List list = new ArrayList(new HashSet()); array转为list List stooges = Arrays.asList("Larry", "Moe", "Curly"); 或者 String[] arr = {"1",…
从string[]转List<string>: " }; List<string> list = new List<string>(str); 从List<string>转string[]: List<string> list = new List<string>(); string[] str = list.ToArray(); Array类实现了数组中元素的冒泡排序.Sort()方法要求数组中的元素实现IComparab…
Warning Message -WCFString-literal input conversion stopped due to an input byte that does not belong to the input codeset UTF-8 -WNSObject-attribute __attribute ((NSObject)) may be put on a typedef only, attribute is ignored -Wabstract-vbase-init in…
转载原文地址: http://blog.csdn.net/guopengzhang/article/details/5497875 一. Incident import java.util.ArrayList; import java.util.List; public class Test { public static void main(String[] args) { List<String> list = new ArrayList<String>…