list转数组
List<String> list = new ArrayList<String>();
list.add("1");
list.add("2");
String[] arr = (String[])list.toArray(new String[list.size()]);
数组转list
String[] arr = new String[] {"1", "2"};
List<String> list = Arrays.asList(arr);
list转数组
List<String> list = new ArrayList<String>();
list.add("1");
list.add("2");
String[] arr = (String[])list.toArray(new String[list.size()]);
数组转list
String[] arr = new String[] {"1", "2"};
List<String> list = Arrays.asList(arr);