JAVA版约会暗号

import java.util.Calendar;

public class _String {
    
    public static void main(String[] args) {

        char[] original = {'赵','兄','托','你','帮','我','办','点','事','好','不','好','?'};
        System.out.print("加密前原文:");
        for(char i : original) {
            System.out.print(i);
        }
        
        Calendar now = Calendar.getInstance();
        int t = now.get(Calendar.DAY_OF_MONTH);        
        char secret = (char)t;
        
        for(int i = 0; i < original.length; i++) {
            original[i] = (char) (original[i] ^ secret);
        }
        
        System.out.print("\n密文:");
        for(char i : original) {
            System.out.print(i);
        }
        
        //解密
        for(int i = 0; i < original.length; i++) {
            original[i] = (char) (original[i] ^ secret);
        }
        
        System.out.print("\n解密后原文:");
        for(int i = original.length -1; i > 0 ; i--) {
            System.out.print(original[i]); 
        }
    }
}