JAVA系列：String數組轉List，List轉String或String數組

目錄

數組轉List

List轉String

List轉String[]

        String[] arr = new String[] {"nnn", "io"};         List list = Arrays.asList(arr);         System.out.println(list);

        String result = String.join("-",list) ;         System.out.println(result);