题解 | #字符串字符匹配#

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String st = sc.nextLine();
        String lon = sc.nextLine();
        char[] ch = st.toCharArray();
        String[] str = new String[ch.length];
        for (int i = 0; i < ch.length; i++) {
            str[i] = Character.toString(ch[i]);
        }
        int num = 0;
        for (int i = 0; i < ch.length; i++) {
            if (lon.contains(str[i])) {
                num = num + 1;
            }
        }
        if(num == ch.length){
            System.out.print(true);
        }else{
            System.out.print(false);
        }
    }
}