如何比较Java中的日期？ [英] How to compare dates in Java?

问题描述

如何比较Java之间的日期？

How do I compare dates in between in Java?

示例：

date1为 22-02-2010

date2是 07-04-2010 今天

date3是 25-12 -2010

date1 is 22-02-2010
date2 is 07-04-2010 today
date3 is 25-12-2010

date3 始终大于 date1 和 date2 始终是今天。如何验证今天的日期是否介于date1和date 3之间？

date3 is always greater than date1 and date2 is always today. How do I verify if today's date is in between date1 and date 3?

推荐答案

日期有 之前和 after 方法后可以相互比较如下：

Date has before and after methods and can be compared to each other as follows:

if(todayDate.after(historyDate) && todayDate.before(futureDate)) {
    // In between
}

包含比较：

if(!historyDate.after(todayDate) && !futureDate.before(todayDate)) {
    /* historyDate <= todayDate <= futureDate */ 
}

您也可以给予 Joda-Time a go，but note that：

You could also give Joda-Time a go, but note that:

Joda-Time是Java SE 8之前Java的标准日期和时间库，现在要求用户迁移到 java.time （ JSR-310 ）。

后端端口适用于Java 6和7以及Android。

Back-ports are available for Java 6 and 7 as well as Android.

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