如何添加日子到java简单的日期格式 [英] how to add days to java simple date format
问题描述
如何添加120天到目前的日期,我使用简单的日期格式?
How should I add 120 days to my current date which I got using simple date format?
我看到很少的帖子,但无法得到它工作,
I have seen few posts about it but couldn't get it to work,
我的代码如下:
SimpleDateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy");
//get current date time with Date()
Date date = new Date();
我需要使用 Calendar
或者我可以用简单的日期格式来做?
Do I need to use the Calendar
library or can I just do it with simple date format?
推荐答案
基本上,你可以简单的使用一个 Calendar
可以根据单个字段的更改自动滚动日期的各个字段,例如...
Basically, you can simple use a Calendar
which has the capacity to automatically roll the various fields of a date based on the changes to a single field, for example...
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.DATE, 120);
date = cal.getTime();
仔细观察 日历
了解更多详情。
Take a closer look at Calendar
for more details.
是的,有一种方法可以使用Joda Time,但是我可以更快地输入这个例子;)
Yes, there is a way to do this using Joda Time, but I could type this example quicker ;)
JodaTime示例
以下是使用 JodaTime 。您可以使用JodaTime直接解析 String
值,但由于您已经完成了此操作,我没有打扰...
The following is an example using JodaTime. You could parse the String
value directly using JodaTime, but since you've already done that, I've not bothered...
Date date = ...;
DateTime dt = new DateTime(date);
dt = dt.plusDays(120);
date = dt.toDate();
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