题解 | #字符串字符匹配#

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        
        String str1 = in.next();
        String str2 = in.next();  
        boolean isFlag = true;
	  
        for(int i = 0;i < str1.length();i++){
            //这里字符串的contains()方法里面需要填写字符串类型
            if(!str2.contains(str1.charAt(i) + "")){
                isFlag = false;
            }
        }
        System.out.print(isFlag); 
    }
}

这样写简单明了吧