How to use java awt in linux

I have few questions about linux. Is there any one who can give me the correct o/p of the following errorecode
Exception in thread "main" java.lang.InternalError: Can't connect to X11 window server using ':0.0' as the value of the DISPLAY variable.
at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
at sun.awt.X11GraphicsEnvironment.<clinit>(X11GraphicsEnvironment.java:134)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:141)
at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:62)
at java.awt.Window.init(Window.java:231)
at java.awt.Window.<init>(Window.java:275)
at java.awt.Frame.<init>(Frame.java:401)
at java.awt.Frame.<init>(Frame.java:366)
at jxml1.<init>(jxml1.java:14)
at jxml1.main(jxml1.java:78)
$ Exception in thread "main" java.lang.InternalError: Can't connect to X11 window server using ':0.0' as the value of the DISPLAY variable.
at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
at sun.awt.X11GraphicsEnvironment.<clinit>(X11GraphicsEnvironment.java:134)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:141)
at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:62)
at java.awt.Window.init(Window.java:231)
at java.awt.Window.<init>(Window.java:275)
at java.awt.Frame.<init>(Frame.java:401)
at java.awt.Frame.<init>(Frame.java:366)
at jxml1.<init>(jxml1.java:14)
at jxml1.main(jxml1.java:78)
$
^C$

Hi,
Most often than not this is related to xhost in unix-shell systems.
Try the following
$setenv DISPLAY :0
$xhost +
or simply
$xhost +If you need more security add just your user after xhost + command
Hope this helps
Aviroop

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