jiami.java.txt

恺撒加密算法实现 Java

import java.io.*;
 
 class JiaMi
  {
     public char[] jiami(String yuanwen)
      {
         String a=yuanwen;
         char[] miwen=a.toCharArray();
         for (int i = 0; i<miwen.length; i++)
          {
             
             miwen[i]+=5;
         }
         
         return miwen;
     }
 }
      
 class JieMi
  {    public char[] jiemi(String miwen)
      {
         
         char[] yuanwen=miwen.toCharArray();
         for (int i = 0; i<yuanwen.length; i++)
          {
             yuanwen[i]-=5;
         }
     
         return yuanwen;
     }
 }
 class Test 
  {
     public static void main(String[] args) throws Exception
      {
         System.out.println("请输入原文：");
         BufferedReader yuanwen=new BufferedReader(new InputStreamReader(System.in));
         String b=yuanwen.readLine();
         JiaMi a=new JiaMi();
     //    String b="CAEAGhinz";
         System.out.print("密文是：");
         System.out.println(a.jiami(b));
         JieMi m=new JieMi();
         char[] miwen=a.jiami(b);
         String c=String.copyValueOf(miwen);
         System.out.print("原文是：");
         System.out.println(m.jiemi(c));
         
     }
 }