Java生成随机时间的简单随机算法

  public static Date randomDate(Date beginDate,Date endDate ){    if(beginDate.getTime() >= endDate.getTime()){      return new Date();    }    long date = random(beginDate.getTime(),endDate.getTime());    return new Date(date);  }  public static long random(long begin,long end){    long rtn = begin + (long)(Math.random() * (end - begin));    if(rtn == begin || rtn == end){      return random(begin,end);    }    return rtn;  }