Скачать или смотреть Converting java.util.Date to int

Learn how to convert a date in `yyyy/MM/dd` format into an `int` in Java, providing practical examples and step-by-step instructions.
---
This video is based on the question https://stackoverflow.com/q/64571707/ asked by the user 'HAAS BOOSTED' ( https://stackoverflow.com/u/14440906/ ) and on the answer https://stackoverflow.com/a/64572260/ provided by the user 'Abra' ( https://stackoverflow.com/u/2164365/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Is it possible to turn java.util.Date() to int?

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Converting java.util.Date to int: A Simple Guide

In Java development, treating dates and times effectively is crucial, especially when you want to utilize them as integers in your application. You might find yourself needing to convert a java.util.Date object into an int representing a date formatted as yyyy/MM/dd. This guide will explain the problem you might be facing and provide a clear solution to reach your goal.

The Problem

Imagine you're working on a Java application that features a JFormattedTextField. You want the current date displayed in the yyyy/MM/dd format, and you're attempting to convert this date into an int. However, the challenge arises when you notice the result exceeds what you expect, returning a large long number instead.

For example, when you retrieve the time from the date, you might get a number like 1603883824076, which represents milliseconds since January 1, 1970. This is likely not what you intended.

The Solution

Step-by-Step Conversion

To achieve your desired outcome of converting the date into an int that reflects the YYYYMMDD format, you can follow these steps:

Setup the JFormattedTextField:
First, create a JFormattedTextField set to the yyyy/MM/dd date format.

[[See Video to Reveal this Text or Code Snippet]]

Retrieve the Text:
Once the field is setup and holds the current date, extract the text content.

[[See Video to Reveal this Text or Code Snippet]]

Remove Slashes:
Now, remove the slashes from the date string. This will help you convert it into a simple integer format.

[[See Video to Reveal this Text or Code Snippet]]

Convert to Integer:
Finally, convert the modified string into an integer. Here’s how to do that:

[[See Video to Reveal this Text or Code Snippet]]

Example Code Snippet

Here’s how the complete process can look in code:

[[See Video to Reveal this Text or Code Snippet]]

Result Explanation

The integer variable will now hold a date formatted as YYYYMMDD. For instance, if today’s date is October 28, 2020, the value of integer would be 20201028.

Conclusion

Converting a java.util.Date to an int representing a formatted date may seem complex, but with the steps outlined above, it becomes straightforward. By extracting, cleaning, and converting the string representation of your date, you can simplify date handling in your applications.

Whether you are a novice or an experienced Java developer, mastering date conversions enhances your skills and helps create more efficient applications. Happy coding!