题解 | #字符串加密#

import java.util.Scanner;

import java.util.LinkedHashMap;
import java.util.LinkedHashSet;


// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String key = in.nextLine();
        String str = in.nextLine();
        LinkedHashSet<Character> set = new LinkedHashSet<>();
        for(Character c : key.toCharArray()){
            set.add(c);
        }
        for(int i = (int)'a' ; i <= (int)'z' ; i++){
            char c = (char)i;
            set.add(c);
        }

        LinkedHashMap<Character ,Character> map = new LinkedHashMap<>();
        char a = 'a';
        for(Character c : set){
            map.put(a ,c);
            a = (char)(a + 1);
        }

        for(Character c : str.toCharArray()){
            System.out.print(map.get(c));
        }

    }
}