java 将分钟添加到当前时间
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Adding minutes to current time
提问by Pavla Nováková
how do i add x amount of minutes to the current time?
我如何将 x 分钟数添加到当前时间？
as i currently have
正如我目前所拥有的
DateFormat dateFormat = new SimpleDateFormat("HH:mm");
Calendar cal = Calendar.getInstance();
System.out.println(dateFormat.format(cal.getTime()));
return ((int) ((x) + ));
which gets my time in HH:mm format, but what i want it to return is x minutes + current time, how would i return this ?
它以 HH:mm 格式获取我的时间，但我希望它返回的是 x 分钟 + 当前时间，我将如何返回它？
回答by partlov
If you have Calendarinstance it is easy:
如果你有Calendar实例，这很容易：
cal.add(Calendar.MINUTES, x);
回答by orique
Add this line before System.out.println
在此之前添加此行 System.out.println
cal.add(Calendar.MINUTE, x);
回答by Pavla Nováková
Joda DateTime libraryprovide a lot of common and usefull date/time manipulation methods. It is worth to look. In your case you can simply write:
Joda DateTime 库提供了很多常用和有用的日期/时间操作方法。值得一看。在你的情况下，你可以简单地写：
DateTime addTwoMinutes = DateTime.now().plusMinutes(2);
回答by user2061037
Just add the amount of time to cal before formatting it.
只需在格式化之前添加 cal 的时间量。
void add(int field, int amount)
Adds or subtracts the specified amount of time to the given calendar field, based on the calendar's rules.
根据日历的规则，向给定的日历字段添加或减去指定的时间量。
Field would be Calendar.MINUTE for example
例如，字段将是 Calendar.MINUTE
回答by Gereon
long now = System.currentTimeMillis();
return now + (minutes * 60 * 1000);
