It call the invokeLater () method on the SwingUtilities class and pass to it a new Runnable oject. Reading the documentation I know that is a way to places the application on the Swing Event Queue. It is used to ensure that all UI updates are concurrency-safe.
Why use SwingUtilities invokeLater ()?
Using SwingUtilities.invokeLater () is not merely advantageous, it's essential, but to understand why you need to understand Swing's threading model. Updates to the GUI, via Swing, must occur on the Event Dispatch Thread (EDT), and code that does anything else (e.g. accessing some resource such as a database) should use one or more other threads.
What is the difference between invokeLater () and run () methods?
3. invokeLater means that this call will return immediately as the event is placed in Event Dispatcher Queue, and run () method will run asynchronously... Show activity on this post. Swing is not thread-safe and all changes to Swing objects must be performed within the Event Dispatch Thread.
How do I use SwingUtilities for GUI rendering task?
SwingUtilities class has two useful function to help with GUI rendering task: 1) invokeLater (Runnable):Causes doRun.run () to be executed asynchronously on the AWT event dispatching thread (EDT). This will happen after all pending AWT events have been processed, as is described above.
When should I use invokeLater instead of EventQueue?
If you have started another thread, use InvokeLater to get back to the EventQueue as quickly as possible and minimize the number of fields that must be synchronized or otherwise guarded. If you need to make the most of multiple cores you will have to reduce your use of the EventQueue, and you will have to pay a big price in complexity.
What is EventQueue invokeLater new runnable ()?
Now EventQueue. invokeLater comes into play. It posts an event (your Runnable ) at the end of Swings event list and is processed after all previous GUI events are processed. Also the usage of EventQueue.
What is the difference between InvokeAndWait and invokeLater?
Difference on InvokeLater vs InvokeAndWait in Swing 1) InvokeLater is used to perform a task asynchronously in AWT Event dispatcher thread while InvokeAndWait is used to perform task synchronously. 2) InvokeLater is a non-blocking call while InvokeAndWait will block until the task is completed.
How do I use later invoke?
2:324:41Java Swing Tutorial 2 : Creating First Project and invokeLater() methodYouTubeStart of suggested clipEnd of suggested clipThen you would have to use this invoke later method. This method tells you that hey you can changeMoreThen you would have to use this invoke later method. This method tells you that hey you can change the Gy you can add buttons the Gy from some other thread.
What is swing utilities?
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.
What is SwingUtilities invokeLater?
An invokeLater() method is a static method of the SwingUtilities class and it can be used to perform a task asynchronously in the AWT Event dispatcher thread. The SwingUtilities. invokeLater() method works like SwingUtilities. invokeAndWait() except that it puts the request on the event queue and returns immediately.
What is the AWT thread?
AWT is the Java Abstract Window Toolkit. The AWT thread should be handling all AWT events, rendering, etc... The 6 priority is just one above normal priority to make this scheduler bias slightly towards it.
Why AWT is heavyweight?
AWT is considered to be heavy-weight because its components are dependent on the underlying Operating System. For instance, When we create an object of java. awt. Checkbox class, its underlying Operating System will generate a checkbox for us.
What is event dispatcher thread EDT in swing?
The event dispatching thread (EDT) is a background thread used in Java to process events from the Abstract Window Toolkit (AWT) graphical user interface event queue.