1033（13）

Posted 2021-01-13 zhuzehua

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

public class Main {

    public static void main(String[] args) {
    // write your code here
        Scanner sc=new Scanner(System.in);
        String bad=sc.next();
        String right=sc.next();
        ArrayList list=new ArrayList();
        //将不等于坏键的字符存入list当中
        for (int i=0;i<right.length();i++){
            for (int j=0;j<bad.length();j++){
                if (right.charAt(i)==bad.charAt(j)||right.charAt(i)==bad.charAt(j)+32){
                    break;
                }
                else if (j==bad.length()-1){
                    list.add(right.charAt(i));
                }
            }
        }
        //暂时还不能将list转换成数组，因为这个list中元素可能因为+存在必须把大写字母去掉
        for (int i=0;i<list.size();i++){
            for (int j=0;j<bad.length();j++){
                if (bad.charAt(j)==‘+‘){
                    if ((char)list.get(i)>=‘A‘&&(char)list.get(i)<=‘Z‘){
                        list.remove(i);
                    }
                }
            }
        }
        Object[] o=list.toArray();
        char[] out=new char[o.length];
        for (int i=0;i<o.length;i++){
            out[i]=(char)o[i];
        }
        //如果坏键当中存在+，那么将out当中存在的大写字母改成小写，如果没有+存在的话，直接输出out
        for (int j=0;j<bad.length();j++){
            if (bad.charAt(j)==‘+‘){
                for (int i=0;i<out.length;i++){
                    if (out[i]>=‘A‘&&out[i]<=‘Z‘){
                        out[i]=(char)(out[i]+32);
                    }
                }
            }
        }
        if (out.length==0){
            System.out.println();
        }
        else{
            for (int i=0;i<out.length;i++){
                System.out.print(out[i]);
            }
        }
    }
}