如何在Java中获取给定日期的上一个/最后一个星期六? [英] How to get previous/last Saturday for a given date in Java?

问题描述

例如:-字符串fromDate ="09/18/2020"；我希望我的实际fromDate是上周六的"09/12/2020"，

For example:- String fromDate="09/18/2020"; I want my actual fromDate to be last Saturday that is "09/12/2020" .

另一个例子:字符串fromDate ="09/01/2020"；我希望我的实际fromDate是上周六的"08/29/2020"，

Another example:- String fromDate="09/01/2020"; I want my actual fromDate to be last Saturday that is "08/29/2020" .

推荐答案

输出:

2020-09-12
9/12/2020

通过 跟踪:日期，详细了解现代日期时间API.时间 .

Learn more about the modern date-time API from Trail: Date Time.

^{出于任何原因，如果您必须坚持使用Java 6或Java 7，则可以使用 ThreeTen-Backport ，它将大多数 java.time 功能反向移植到Java 6&7.如果您正在为Android项目工作，并且您的Android API级别仍不符合Java-8，请检查 Java 8+ API可通过重复使用和如何在Android Project中使用ThreeTenABP .}

^{For any reason, if you have to stick to Java 6 or Java 7, you can use ThreeTen-Backport which backports most of the java.time functionality to Java 6 & 7. If you are working for an Android project and your Android API level is still not compliant with Java-8, check Java 8+ APIs available through desugaring and How to use ThreeTenABP in Android Project.}

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