String[]与List<String>的相互转换

String[]转List

String[] arr = new String[]{"a","b","c"};
List<String> list = Arrays.asList(arr); 

List<String>转String[]

 
List<String> list = new ArrayList<String>();
 
list.add("a");
 
list.add("b");
 
list.add("c");
 
String[] arr = list.toArray(new String[list.size()]);