?Java代碼

package date;

?

import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.ArrayList;

import java.util.Calendar;

import java.util.Date;

import java.util.List;

?

public class CalculateIntervalBetween2Dates {

private static final long DAY=24*60*60*1000;

private static final long HOUR=60*60*1000;

private static final long MINUTES=60*1000;

private static final long SECONDS=1000;

private static final long MILLIONSECONDS=1;

?

public static void main(String[] args) {

String startDateStr = "20121022";

String endDateStr = "20121206";

CalculateIntervalBetween2Dates.listNumberOfDates(startDateStr, endDateStr);

CalculateIntervalBetween2Dates.calculateInterval(startDateStr, endDateStr,MILLIONSECONDS);

CalculateIntervalBetween2Dates.calculateInterval(startDateStr, endDateStr,SECONDS);

CalculateIntervalBetween2Dates.calculateInterval(startDateStr, endDateStr,MINUTES);

CalculateIntervalBetween2Dates.calculateInterval(startDateStr, endDateStr,HOUR);

CalculateIntervalBetween2Dates.calculateInterval(startDateStr, endDateStr,DAY);

}

?

/**

* List dates between start date and end date, including the start date and end date.

* @param startDateStr

* @param endDateStr

*/

public static void listNumberOfDates(String startDateStr,String endDateStr){

SimpleDateFormat sf = new SimpleDateFormat("yyyyMMdd");

Date startDate = null;

Date endDate = null;

try {

startDate = sf.parse(startDateStr);

endDate = sf.parse(endDateStr);

} catch (ParseException e) {

e.printStackTrace();

}

Calendar c1 = Calendar.getInstance();

List<Date> cancelDates = new ArrayList<Date>();

if (startDate != null && endDate != null && startDate.before(endDate)) {

Date tempDate = startDate;

do {

cancelDates.add(tempDate);

c1.setTime(tempDate);

c1.add(Calendar.DAY_OF_MONTH, 1);

tempDate = c1.getTime();

} while (tempDate.before(endDate));

cancelDates.add(endDate);

}

?

System.out.println("There are " + cancelDates.size() + " days between " + sf.format(startDate) + " and " + sf.format(endDate) + ", inclusive.");

System.out.println("See the following list:");

for (Date date : cancelDates) {

System.out.println(sf.format(date));

}

System.out.println();

}

?

/**

* Calculate how many days/hours/minutes/seconds/million seconds between start date and end date, including the start date and end date.

* @param startDateStr

* @param endDateStr

* @param interval

*/

public static void calculateInterval(String startDateStr,String endDateStr,long interval){

SimpleDateFormat sf = new SimpleDateFormat("yyyyMMdd");

Date startDate = null;

Date endDate = null;

try {

startDate = sf.parse(startDateStr);

endDate = sf.parse(endDateStr);

} catch (ParseException e) {

e.printStackTrace();

}

Calendar c1 = Calendar.getInstance();

c1.setTime(startDate);

long startInMillis=c1.getTimeInMillis();

c1.setTime(endDate);

//inclusive,2009/10/24-2009/10/23=1,but actually 2 days

c1.add(Calendar.DAY_OF_MONTH, 1);

?

long endInMillis=c1.getTimeInMillis();

long between=endInMillis-startInMillis;

System.out.println("There are " + (between/interval) +" "+getIntervalLabel(interval) + " between " + sf.format(startDate) + " and " + sf.format(endDate) + ", inclusive");

}

?

private static String getIntervalLabel(long interval){

if(interval==DAY){

return "days";

}else if(interval==HOUR){

return "hours";

}else if(interval==MINUTES){

return "minutes";

}else if(interval==SECONDS){

return "seconds";

}else if(interval==MILLIONSECONDS){

return "million seconds";

}else{

return "error";

}

}

} ?

轉(zhuǎn)載于:https://blog.51cto.com/shuaigee/1140917

總結(jié)

以上是生活随笔為你收集整理的计算两个日期之间有多少天多少小时多少分钟的全部內(nèi)容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網(wǎng)站內(nèi)容還不錯，歡迎將生活随笔推薦給好友。