java获取几天前和几天后的日期

/**
   * 得到几天前的时间
   * @param d
   * @param day
   * @return
   */
  public static Date getDateBefore(Date d,int day){
   Calendar now =Calendar.getInstance();
   now.setTime(d);
   now.set(Calendar.DATE,now.get(Calendar.DATE)-day);
   return now.getTime();
  }
  
  /**
   * 得到几天后的时间
   * @param d
   * @param day
   * @return
   */
  public static Date getDateAfter(Date d,int day){
   Calendar now =Calendar.getInstance();
   now.setTime(d);
   now.set(Calendar.DATE,now.get(Calendar.DATE)+day);
   return now.getTime();
  }

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1 楼 kkooff114 2013-07-30  

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