Character[]与char[]互转

1.最简单的方式就是循环赋值

Character[] s = {'d','a'};
char[] d = new char[s.length];
for(int i=0;i<s.length;i++){
        d[i] = s[i].charValue();
      }

2.利用stream

        //Character[]转char[]
        Character[] sc = {'d','a'};
        Stream<Character> stream = Arrays.stream(sc);
        String collect = stream.map(String::valueOf).collect(Collectors.joining());
        char[] chars1 = collect.toCharArray();
        
        //char[]转Character[]
        char[] a = {'j','a'};
        IntStream chars = String.valueOf(a).chars();
        Stream<Character> characterStream1 = chars.mapToObj(b -> (char) b);
        Character[] characters = characterStream1.toArray(Character[]::new);