java 当前时间月份

public static void main(String[] arg) {
  SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//设置日期格式
  Date date = new Date();
  Date newDate = stepMonth(date, 1);
  System.out.println("加了一个月之后，广告到期时间为：" + df.format(newDate));
}
public static Date stepMonth(Date sourceDate, int month) {
  Calendar c = Calendar.getInstance();
  c.setTime(sourceDate);
  c.add(Calendar.MONTH, month);
  return c.getTime();
}