Java日期和日历 [英] Java Date vs Calendar

问题描述

有人可以告知日期和日历类型的当前最佳做法。

Could someone please advise the current "best practice" around Date and Calendar types.

在编写新代码时，最好始终优先于日历 < c> ，或者是否有 Date 是更合适的数据类型？

When writing new code, is it best to always favour Calendar over Date, or are there circumstances where Date is the more appropriate datatype?

推荐答案

日期是一个更简单的类，主要是出于向后兼容性的原因。如果您需要设置特定日期或执行日期算术，请使用日历。日历还处理本地化。

Date is a simpler class and is mainly there for backward compatibility reasons. If you need to set particular dates or do date arithmetic, use a Calendar. Calendars also handle localization. The previous date manipulation functions of Date have since been deprecated.

我个人倾向于使用毫秒为单位的时间作为长（或长，适当）或日历，当有是一个选择。

Personally I tend to use either time in milliseconds as a long (or Long, as appropriate) or Calendar when there is a choice.

日期和日历都是可变的，在API中使用时往往会出现问题。

Both Date and Calendar are mutable, which tends to present issues when using either in an API.

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