在DateTime字段上添加H：M：S值

问题描述

如何添加时间：MINUTES：SECONDS值在DateTime字段？

How to add HOURS:MINUTES:SECONDS value on DateTime field?

例如，我想在我的字段中包含dimetime值添加（sum）与字符串值其中包含HH：MM：SECONDS中的值。

On example I want in my field which contains dimetime value to add (sum) with string value which contains value in HH:MM:SECONDS.

ReportDate是 2013-01-01 10:00:00
要添加的值是： 120：34：29

ReportDate is 2013-01-01 10:00:00Value to add is :120:34:29

所以结果应该是：$ $ c> 2013-01-06 10:34:00

So result should be: 2013-01-06 10:34:00

我尝试过：

GregorianCalendar c = new GregorianCalendar();
c.setTime(reportDate);
String toAdd='120:34:29';
c.add(Calendar.HOUR, toAdd);
java.util.Date targetFinish = c.getTime();
SystemOutPrintln(targetFinish.toString()); 

所以有问题的行是 c.add（Calendar.HOUR，toAdd）;
如何添加这些值？我想在公历上做。并希望在SysOut中有新的价值;
谢谢

So problematic row is c.add(Calendar.HOUR, toAdd);How to add these value? I want to do it over Gregorian Calendar. And want to have in SysOut that new value;Thank you

推荐答案

GregorianCalendar c = new GregorianCalendar();
c.setTime(reportDate);

String[] toAdd = "120:34:29".split(":");

int hours = Integer.parseInt(toAdd[0]);
int mins = Integer.parseInt(toAdd[1]);
int secs = Integer.parseInt(toAdd[2]);

c.add(Calendar.SECOND, secs);
c.add(Calendar.MINUTE, mins);
c.add(Calendar.HOUR, hours);

java.util.Date targetFinish = c.getTime();

SystemOutPrintln(targetFinish.toString());

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