题解 | #字符串字符匹配#

class HelloWorld {
    public static void main(String[] args) {
      
      // 两种办法  map查找，set判断添加是否成功
        Scanner in = new Scanner(System.in);
        String s1 = in.nextLine();
        String s2 = in.nextLine();
        char[] chars2 = s2.toCharArray();
        char[] chars1 = s1.toCharArray();
        Set<Character> set = new HashSet<>();
        //System.out.println(Arrays.toString(chars2));
        //System.out.println(Arrays.toString(chars1));
        for (int i = 0; i < s2.length(); i++) {
            set.add(chars2[i]);
        }
        boolean f = true;
        for (int i = 0; i < s1.length(); i++) {
            if (set.add(chars1[i])) {
                System.out.println(false);
                f=false;
                break;
            }
        }
        if (f) {
            System.out.println(true);
        }
    }
}