对文字加密

package javase02;

 

import java.util.Scanner;

 

public class assign05 {

 static char[] a;

 public static void main(String[] args) {

  System.out.println("请输入原文：");

  Scanner s=new Scanner(System.in);

  String str=s.next();

  int len=str.length();

  a=str.toCharArray();

 

  char sec='8';

  char c = 0 ;

  char d;

  System.out.print("密文：");

  for(int i=0;i

    c=(char) (a[i]^sec);

    System.out.print(c);

  }

  System.out.println();

  System.out.println("解密后原文：");

  for(int i=0;i

   c=(char) (a[i]^sec);

   d=(char)(c^sec);

   System.out.print(d);

  }

 

 }

 

}