Скачать или смотреть Fixing the Swing Timer Delay Issue in Java: A Guide to Dynamic Timing

Discover how to effectively set a dynamic delay in Java's Swing Timer. Learn the key adjustments needed for successful implementation!
---
This video is based on the question https://stackoverflow.com/q/68785438/ asked by the user 'soujatya rakshit' ( https://stackoverflow.com/u/16667020/ ) and on the answer https://stackoverflow.com/a/68785512/ provided by the user 'Kaimson' ( https://stackoverflow.com/u/11847924/ ) 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: Dynamic value not working in swing swing Timer

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.
---
Fixing the Swing Timer Delay Issue in Java: A Guide to Dynamic Timing

When working with Java's Swing Timer, you might encounter a common issue: needing to set the timer's delay dynamically without executing at a zero-millisecond delay. This challenge can lead to frustrating debugging sessions, especially when hardcoded delays work flawlessly. In this post, we will dissect the problem and guide you through a solution to set dynamic timing correctly in your Swing applications.

Understanding the Problem

Let’s take a closer look at the issue you are facing. You have successfully implemented a timer with a hardcoded delay of 5000 milliseconds (5 seconds), which functions correctly:

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

However, when you attempt to assign the delay dynamically through a constructor, your timer defaults to a 0 millisecond delay. Here’s the problematic code snippet:

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

Root Cause of the Issue

The core of this issue stems from the fact that the delay variable has not been initialized at the time you are creating the Timer instance. Java initializes it to 0 by default, leading to the error.

The Solution: Adjusting the Timer Initialization

To fix this problem, we need to ensure that the timer knows the appropriate dynamic delay when it starts running. Here’s how you can rectify it step-by-step:

Step 1: Set the Delay After Your Timer is Created

You have to set the delay of the timer explicitly after it has been created. This can be done in the start() method of your class. Here’s how you should modify your start() method:

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

Step 2: Full Example Code

Here’s the complete example of your StartStop class with the changes made:

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

Conclusion

Setting a dynamic delay in Java’s Swing Timer can initially seem troublesome, but by adjusting the timer's delay within your start method, you can successfully implement dynamic behavior in your applications. You can now enjoy a well-functioning timer that respects the delay you set without falling back to that pesky 0 millisecond delay! Happy coding!