Why do I need Swing Utilities and how do I use it?

问题:

This is mainly in regards to my question here, but I don't understand why Swing Utilities is needed and what it is used for. I'm designing a swing gui and I don't wanna miss out on anything that Swing Utilities might offer. Also could someone could explain what the invokeLater method does and how it works.

回答1:

As stated in the API, SwingUtilities is a collection of utility methods for Swing. In this case, it is needed to ensure that Swing components are created/modified in the Event Dispatch Thread, or EDT. Also, as stated in the API, invokeLater is used when an application thread needs to update the GUI.

You might also want to read up on Concurrency in Swing. Also, a More In-Depth Explanation of invokeLater.