java加密解密算法位运算

 1 package com.itxxz;
 2 
 3 import java.util.Scanner;
 4 
 5 /**
 6  * java加密解密算法
 7  * 
 8  * @author 螃蟹
 9  * 网站：IT学习者
10  * 网址：http://www.itxxz.com
11  *
12  */
13 public class Demo {
14 
15     public static void main(String[] args){
16         Scanner scan = new Scanner(System.in);
17         boolean flag = true;
18         String msg = "";
19         while(true){
20             if(flag){
21                 msg = "加密";
22                 flag = false;
23             }else{
24                 msg = "解密";
25                 flag = true;
26             }
27             System.out.println("请输入需要"+msg+"的字符串：");
28             String password = scan.nextLine();
29             char[] array = password.toCharArray();
30             for(int i = 0;i<array.length;i++){
31                 array[i] = (char)(array[i]^20000);
32             }
33             System.out.println(msg+"结果如下：");
34             System.out.println(new String(array));
35         }
36         
37     }
38 }