java时间差得到年月日

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package action;

import java.util.Calendar;
import java.util.Date;
import util.Util;
/**
*
* Test01
* 创建人：Ming
* 创建时间：2016-4-28日 -上午09:44:00
* @version 1.0.0
*
*/
public class Test01 {

/**
* 时间差得到年-月-日
* @param curr
* @param join
* @return
*/
public static String getDate(Calendar curr, Calendar join){

int day = curr.get(Calendar.DAY_OF_MONTH) - join.get(Calendar.DAY_OF_MONTH);

int month = curr.get(Calendar.MONTH) - join.get(Calendar.MONTH);

  int year = curr.get(Calendar.YEAR) - join.get(Calendar.YEAR);

  if (day < 0) {

   month -= 1;

curr.add(Calendar.MONTH, -1);

   day = day + curr.getActualMaximum(Calendar.DAY_OF_MONTH);
  }
  if (month < 0) {

month = (month + 12) % 12;

   year--;
  }
  System.out.println("年龄：" + year + "年" + month + "月" + day + "天");

  String dateStr = year+"年"+month+"月"+day+"日";

  return dateStr;
}

public static void main(String[] args) {

  // 当前日期
  String str = Util.getDate();
  Date date = Util.parFormat(str);
  Calendar dq = Calendar.getInstance();
  dq.setTime(date);

  // 默认初始值日期
  String dd = "2015-2-12";
  Date date2 = Util.parFormat(dd);
  Calendar rz = Calendar.getInstance();
  rz.setTime(date2);

  System.out.println(getDate(dq,rz));

}

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