1. 数组转换为List 12 String[] arr = new String[] {"str1", "str2"};List<String> list = Arrays.asList(arr); 2 .List转换为数组 12345 List<String> list = new ArrayList<String>();list.add("str1");list.add("str2");int size = list.size();String[] arr = list.toArray(new String[size]); 赞微海报分享
近期评论