题解 | #字符串加密#

import java.util.*;

public class Main {
    public static void main(String[] args) {
        java.util.Scanner sc = new java.util.Scanner(System.in);
        String[] xxzm = {"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"};
        java.util.List<String> newzmb = new java.util.ArrayList<>();
        java.util.List<String> newzmbb = new java.util.ArrayList<>();
        char[] key = sc.nextLine().toCharArray();
        char[] str = sc.nextLine().toCharArray();
        //key去重
        for(int i = 0;i<key.length;i++){
            if(!newzmb.contains(String.valueOf(key[i]))){
                newzmb.add(String.valueOf(key[i]));
            }
        }
        //去除
        for(int i=0;i<xxzm.length;i++){
            if(!newzmb.contains(xxzm[i])){
                newzmbb.add(xxzm[i]);
            }
        }

        java.util.Map<String,String> map = new java.util.HashMap<>();
        for(int i=0;i<xxzm.length;i++){
            if(i<newzmb.size()){
                map.put(xxzm[i],newzmb.get(i));
            }else{
                map.put(xxzm[i],newzmbb.get(i-newzmb.size()));
            }
        }
        StringBuffer bf = new StringBuffer();
        for(int i=0;i<str.length;i++){
            bf.append(map.get(String.valueOf(str[i])));
        }
        System.out.println(bf.toString());
    }
}