Java 判断两个日期相差多少天，java判断日期相差,import java.

Java 判断两个日期相差多少天，java判断日期相差,import java.

import java.util.Calendar;public class DateDifferent{        public static void main(String[] args){    Calendar calendar1 = Calendar.getInstance();    Calendar calendar2 = Calendar.getInstance();    calendar1.set(2014, 01, 10);    calendar2.set(2014, 07, 01);    long milliseconds1 = calendar1.getTimeInMillis();    long milliseconds2 = calendar2.getTimeInMillis();    long diff = milliseconds2 - milliseconds1;    long diffSeconds = diff / 1000;    long diffMinutes = diff / (60 * 1000);    long diffHours = diff / (60 * 60 * 1000);    long diffDays = diff / (24 * 60 * 60 * 1000);    System.out.println("\nThe Date Different Example");    System.out.println("Time in milliseconds: " + diff + " milliseconds.");    System.out.println("Time in seconds: " + diffSeconds + " seconds.");    System.out.println("Time in minutes: " + diffMinutes + " minutes.");    System.out.println("Time in hours: " + diffHours + " hours.");    System.out.println("Time in days: " + diffDays + " days.");  }}