Java_日期操作_日期之差

package test;import java.util.Calendar;public class test2 {public static void main(String[] args) {Calendar calendar = Calendar.getInstance();// 当前时间2015/1/27 12:15long time_now = calendar.getTimeInMillis();calendar.set(2015, 0, 1);// 此处设置时月份也从0开始，即0为一月long time_2015 = calendar.getTimeInMillis();int difference = new Long(Math.abs(time_2015 - time_now)/ (1000 * 60 * 60 * 24)).intValue();System.out.println("相差" + difference + "天");}}

输出：

相差26天