题解 | #字符串加解密#

import java.io.BufferedReader; import java.io.InputStreamReader; import java.util.Arrays; import java.util.Scanner;

public class Main{ public static void main(String []args) throws Exception{ BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); String str=""; while((str=br.readLine())!=null) { String word=br.readLine(); System.out.println(jiami(str)); System.out.println(jiemi(word)); } } public static String jiami(String str) { char ch[]=str.toCharArray(); StringBuilder sb=new StringBuilder();

	for(int i=0;i<ch.length;i++) {
		if(ch[i]>='a'&&ch[i]<='z') {
			if(ch[i]=='z')
				sb.append('A');
			else 
				sb.append((char)(ch[i]-32+1));
			
		}
		else if(ch[i]>='A'&&ch[i]<='Z') {
			if(ch[i]=='Z')
				sb.append('a');
			else 
				sb.append((char)(ch[i]+32+1));
	 	}
		else if(ch[i]>='0'&&ch[i]<='9') {
			if(ch[i]=='9')
				sb.append('0');
			else 
				sb.append(ch[i]-'0'+1);
			
		}
	
	}
	
	return sb.toString();
}

public static String jiemi(String str) {
	char ch[]=str.toCharArray();
	StringBuilder sb=new StringBuilder();
	
	for(int i=0;i<ch.length;i++) {
		if(ch[i]>='a'&&ch[i]<='z') {
			if(ch[i]=='a')
				sb.append('Z');
			else 
				sb.append((char)(ch[i]-32-1));
			
		}
		else if(ch[i]>='A'&&ch[i]<='Z') {
			if(ch[i]=='A')
				sb.append('z');
			else 
				sb.append((char)(ch[i]+32-1));
	 	}
		else if(ch[i]>='0'&&ch[i]<='9') {
			if(ch[i]=='0')
				sb.append('9');
			else 
				sb.append(ch[i]-'0'-1);
			
		}
	
	}
	
	return sb.toString();
}

}