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如果是 “字符串数组” 转 “字符串”，只能通过循环，没有其它方法
String[] str = {"abc", "bcd", "def"};
StringBuffer sb = new StringBuffer();
for(int i = 0; i < str.length; i++){
sb. append(str[i]);
}
String s = sb.toString();
如果是 “字符数组” 转 “字符串” 可以通过下边的方法
char[] data={‘a‘,‘b‘,‘c‘}; String s=new String(data);
//字符数组转List
String[] s = {"a","b","c"};
List list= java.util.Arrays.asList(s);
//List转字符数组——例子一
List<String> list = new ArrayList<String>(); list.add("a1"); list.add("a2"); String[] toBeStored = list.toArray(new String[list.size()]); for(String s : toBeStored) { System.out.println(s); }
//List转字符数组——例子二
List<String> list = new ArrayList<String>(); list.add("a1"); list.add("a2"); String[] toBeStored = new String[al.size()]; list.toArray(toBeStored); for (String s : toBeStored) { System.out.println(s); }
//List转字符数组——例子三
List<String> list = new ArrayList<String>(); list.add("a1"); list.add("a2"); String[] toBeStored = new String[]{}; String[] str = al.toArray(toBeStored); for (String s : str) { System.out.println(s); }
利用此转化：String str[] = list.toArray(new String[]{});
List list= java.util.Arrays.asList(String str[]);
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原文地址：http://www.cnblogs.com/xuerong/p/5687942.html
