题解 | #字符串加密#

import java.util.ArrayList;
import java.util.LinkedHashSet;
import java.util.Scanner;

// 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);
        char[] key = in.nextLine().toCharArray();
        char[] pass = in.nextLine().toCharArray();
        LinkedHashSet<Character> set = new LinkedHashSet<>();
        for(char index : key){
            set.add(index);
        }
        for(char i='a'; i<='z'; i++){
            set.add(i);
        }
        ArrayList<Character> array = new ArrayList<>(set);
        for(char index : pass){
            int n = (int)index -(int)'a';
            System.out.print(array.get(n));
        }
    }
}