简单的汉字加密-java

import java.util.*;

import java.lang.*;

public class DayThreeEee{

public static void main (String args[]){

final char KEY = '8';

System.out.println("亲，输入源码：");

Scanner sc = new Scanner(System.in);

String s = sc.next();

System.out.println("亲，源码为："+s);

StringBuffer str = new StringBuffer();

str.append(s);

StringBuffer str2 = new StringBuffer();

StringBuffer str3 = new StringBuffer();

//加密

for(int i=0;i<str.length();i++)

{

char c = (char)(str.charAt(i) ^ KEY);

str2.append(c);

}

//解密

for(int i=0;i<str2.length();i++)

{

char c = (char)(str2.charAt(i) ^ KEY);

str3.append(c);

}

System.out.println("秘文："+str2);

System.out.println("原文："+str3);

}

}