Main difference between invokeAndWait () and invokeLater () is invokeAndWait () keeps the code on to event thread and waits till the execution of run method is completed whereas invokeLater () keeps the code on event thread and runs the rest of code in the thread.
What is the difference between invokeAndWait and invokeLater in Java?
Jan 11, 2020 · Main difference between invokeAndWait() and invokeLater() is invokeAndWait() keeps the code on to event thread and waits till the execution of run method is completed whereas invokeLater() keeps the code on event thread and runs the rest of code in the thread.
What is use of invokeLater in SwingUtilities?
Mar 09, 2022 · Main difference between invokeAndWait() and invokeLater() is invokeAndWait() keeps the code on to event thread and waits till the execution of run method is completed whereas invokeLater() keeps the code on event thread and runs the rest of code in the thread. Difference on InvokeLater vs InvokeAndWait in Swing 1) InvokeLater is used to perform
What is invokeLater new runnable?
Sep 14, 2011 · 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.
What is EventQueue invokeLater?
invokeLater. public static void invokeLater(Runnable runnable) Causes runnable to have its run method called in the dispatch thread of the system EventQueue . This will happen after all pending events are processed.
What is invokeLater in Java?
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.Aug 21, 2019
When should you use later invoke?
You just have to call invokeLater or invokeAndWait if you are calling from another thread. to assume a method/class is not threadsafe if not written in the documentation.Feb 4, 2013
What are differences between Swing and AWT?
AWT stands for Abstract Window Toolkit. It is a platform-dependent API to develop GUI (Graphical User Interface) or window-based applications in Java....Difference between AWT and Swing in Java.S.NOAWTSwing4.The execution time of AWT is more than Swing.The execution time of Swing is less than AWT.6 more rows•Jan 10, 2022
What is InvokeAndWait?
InvokeAndWait is synchronous and blocking call and waits until submitted Runnable completes while InvokeLater is asynchronous and non-blocking it will just submit task and exit." That's all on the InvokeAndWait() and InvokeLater() method of SwingUtilities class.Jul 30, 2021
Why AWT is heavyweight?
AWT components are heavyweight components, because they rely on the local platform's windowing system to determine their functionality and their look-and-feel. Several Swing components are heavyweight components.
What is the difference between Swing and JSF?
Explain the difference between Swing and JSF. - JSF applications cannot operate when a network is not present. - Swing applications can operate on local data when the network is not there.
What are the Swing & AWT classes used for and what is the difference between the packages?
In brief, AWT and Swing are two toolkits to build rich Graphical User Interfaces (GUI). The main difference between AWT and Swing in Java is that AWT is Java's original platform dependent windowing, graphics and user interface widget toolkit while Swing is a GUI widget toolkit for Java that is an extension of AWT.Oct 24, 2018
Is Swing faster than AWT?
swing works faster. awt does not work faster. swing components are light weight. awt components are heavy weight.Jan 3, 2009
Why do we need InvokeLater method in Swing?
As we all know java swing is not threadsafe , you can not update swing component like JButton, JLable , JTable or JTree from any thread , they all needs to be updated from just one thread and we call it Event Dispatcher thread or EDT in short.
What is invokeLater in Java Swing
Invokelater is a method in java on swing package and belongs to swingutilities class. Invokelater is used by java swing developer to update or perform any task on Event dispatcher thread asynchronously.invokeLater has been added into Java API from swing extension and it’s belong to SwingUtilities class.
How does invokeLater works in Java Swing
If you see the signature of invokeLater method you will find that invokeLater takes a Runnable object and queues it to be processed by EventDispatcher thread. EDT thread will process this request only after sorting out all AWT pending events or requests.
Why do we need InvokeAndWait method in Swing
As we know that Swing is not thread-safe and we can not update the Swing component or GUI from any thread. If you try to update GUI form any thread you will get unexpected result or exception, it could be your GUI might not be visible or simply disappered. Only method which is thread-safe in swing is repaint () and revalidate ().
How does InvokeAndWait works in Java Swing
If you look at the signature of invokeAndWait method you will see that it takes a Runnable object and run method of that Runnable is executed synchronously on EDT. This is a blocking call and wait until all pending AWT events gets processed and run () method completes. Its a preferred way of updating GUI form application thread.
Example of InvokeLater in Java Swing
Here is an example of invokeLater () in Swing which will demonstrate that in case of invokeLater application thread doesn’t block.
Example of using InvokeAndWait in Java Swing
In this example of InvokeAndWait we will see that Application thread will block until Runnable object passed to EDT has been executed.