Java:如何检查日期是否在一定范围内? [英] Java: how do I check if a Date is within a certain range?

问题描述

我有一系列包含开始日期和结束日期的范围.我想检查日期是否在该范围内.

I have a series of ranges with start dates and end dates. I want to check to see if a date is within that range.

Date.before() 和 Date.after() 使用起来好像有点别扭.我真正需要的是这样的伪代码:

Date.before() and Date.after() seem to be a little awkward to use. What I really need is something like this pseudocode:

boolean isWithinRange(Date testDate) {
    return testDate >= startDate && testDate <= endDate;
}

不确定它是否相关，但我从数据库中提取的日期有时间戳.

Not sure if it's relevant, but the dates I'm pulling from the database have timestamps.

推荐答案

boolean isWithinRange(Date testDate) {
   return !(testDate.before(startDate) || testDate.after(endDate));
}

我觉得没那么尴尬.请注意，我是这样写的，而不是

Doesn't seem that awkward to me. Note that I wrote it that way instead of

return testDate.after(startDate) && testDate.before(endDate);

所以即使 testDate 正好等于最终情况之一，它也会起作用.

so it would work even if testDate was exactly equal to one of the end cases.

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