如何比较Java中的两个字符串日期?

How to compare two string dates in Java?(如何比较Java中的两个字符串日期?)

问题描述

我有两个字符串格式的日期，如下所示 -

I have two dates in String format like below -

String startDate = "2014/09/12 00:00";

String endDate = "2014/09/13 00:00";

我想确保 startDate 应该小于 endDate.startDate 不应大于 endDate.

I want to make sure startDate should be less than endDate. startDate should not be greater than endDate.

如何比较这两个日期并相应地返回布尔值?

How can I compare these two dates and return boolean accordingly?

推荐答案

将它们转换为实际的 Date 对象，然后调用 before.

Convert them to an actual Date object, then call before.

SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd h:m");
System.out.println(sdf.parse(startDate).before(sdf.parse(endDate)));

回想一下，parse 将抛出 ParseException，因此您应该在此代码块中捕获它，或者将其声明为作为方法签名的一部分抛出.

Recall that parse will throw a ParseException, so you should either catch it in this code block, or declare it to be thrown as part of your method signature.

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