java 字符串，字符数组，list间的转化

原文地址 : http://www.cnblogs.com/azhqiang/p/5587191.html

1.关于java.lang.string.split

   xxx.split()方法可以将一个字符串分割为子字符串，然后将结果作为字符串数组返回。

2.字符串转字符数组

  String str =" aa.png,a2.png,a3.png";  String[] arrayStr =new String[]{};  arrayStr = str.split(",");

3.字符数组转list

   List list = java.util.Arrays.asList(arrayStr);

4.list转化为字符数组

String[] storeStr = list.toArray(new String[list.size()]);

示例:

        public class SplitTest {              public static void main(String args[]) {                  String str = "a1.png,a2.png,a3.png";// 原始字符串                  String[] arrayStr = new String[] {};// 字符数组                  List<String> list = new ArrayList<String>();// list                  arrayStr = str.split(",");// 字符串转字符数组                  list = java.util.Arrays.asList(arrayStr);// 字符数组转list                  String[] storeStr = list.toArray(new String[list.size()]);// list转成字符数组                  /* 输出字符数组的值 */                  for (String s : arrayStr) {                      System.out.println(s);                  }                  System.out.println("-------------");                  /* 输出list值 */                  for (String s : list) {                      System.out.println(s);                  }                  System.out.println("-------------");                  for (String s : storeStr) {                      System.out.println(s);                  }                  System.out.println("-------------");              }          }