This is not abt the error message  . I ll explain my doubt  clearly .

While we r executing  a java  program ;

If we wanna display  a "Hello World" message in a message box  in the

sence , wht we have to do for that ?

I knew one thing , by using frames  and Panel we can do that . But i

need a compact coding for that either that is in simple java , frames

or Panel .