Jan 3, 2009 · AWT is a Java interface to native system GUI code present in your OS. It will not work the same on every system, although it tries. Swing is a more-or-less pure-Java GUI. It uses AWT to …

Sep 9, 2011 · AWT, Swing and SWT are UI toolkits but I would certainly not call them "frameworks". Frameworks are based upon a given UI toolkit and provide the glue to build your application. First, …

Dec 25, 2011 · AWT is the original cross-platform, native-peer based GUI widget set. It drew a lot of complaints for not being perfectly consistent across platforms. Sun built the Swing widget set to …

There is no performance benefit of setting java.awt.headless=true if you're not using AWT features. AWT features are loaded on-demand. As explained in the linked article, headless mode is useful for …

Mar 12, 2010 · the "awt" package is no different then any other package, you need an "import" statement. Look at any other example in the book or forums to see how they are coded.

Exception in thread "main" java.awt.HeadlessException: No X11 DISPLAY variable was set, but this program performed an operation which requires it. at java.awt.GraphicsEnvironment.

Now I just get "Exception in thread "main" java.awt.AWTError: Can't connect to X11 window server using 'localhost:1.0' as the value of the DISPLAY variable." on Ubuntu 16.04.

Dec 26, 2012 · I heard that when we use awt or swing, while creating a FRAME, an unchecked exception may be thrown which is "Headless exception". I never got this exception. Can anyone tell …

Mar 23, 2009 · AWT is said to be "Heavyweight" because basically each AWT component is a native platform component. AWT is implemented on top of the platform's native GUI toolkit. This also …

Jul 8, 2014 · No, AWT is doing the painting, or more to the point, it provides access to the Graphics layer for Swing to paint on. Swing, unlike JavaFX, borrows a lot from the AWT API so it could take …