Jan 3, 2009 · Can someone please explain me what's the difference between Swing and AWT? Are there any cases where AWT is more useful/advised to use than swing or vice-versa?

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.

I am trying to install a Java application on my Linux machine (Slackware). I have received the following error, and I do not understand it. Could you advise me how to approach the problem? …

Note that the JVM contains heuristics that determine the value of java.awt.headless if it's not explicitly set. For example, on Linux if the DISPLAY environment variable is not set, …

Is the java.awt included in JDK 10? Ye, the package does exist. The Java10 API docs do confirm the same as well. If yes where is and how can I make visible to Eclipse? In a modular code, all …

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.

Mar 12, 2010 · Don't concentrate on the fact that you are learning "awt". Remember your Java basics first and apply that knowledge to solve your problem. the "awt" package is no different …

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 …

Aug 16, 2011 · user input from the form. its working, i just wanna know how to do a popup message box

Feb 25, 2012 · The interface between the native windowing system and the Java application; The core of the GUI event subsystem; Several layout managers; The interface to input devices …