Help With A Bug

[sahilsachdeva]

HI,
m a java newbie, trying to write a GUI in java. the code that i wrote complied sucessfully but when i run it i get certain exceptions that i dnt understand:-

Exception in thread "AWT-EventQueue-0" java.lang.Illeg alArgumentExcep tion: canno
t add to layout: constraint must be a string
at java.awt.CardLa yout.addLayoutC omponent(Unknow n Source)
at java.awt.Contai ner.addImpl(Unk nown Source)
at java.awt.Contai ner.add(Unknown Source)
at PCGUI.<init>(PC GUI.java:93)
at PCGUI.createAnd ShowGUI(PCGUI.j ava:179)
at PCGUI.access$00 0(PCGUI.java:6)
at PCGUI$2.run(PCG UI.java:198)
at java.awt.event. InvocationEvent .dispatch(Unkno wn Source)
at java.awt.EventQ ueue.dispatchEv ent(Unknown Source)
at java.awt.EventD ispatchThread.p umpOneEventForH ierarchy(Unknow n Source)

at java.awt.EventD ispatchThread.p umpEventsForHie rarchy(Unknown Source)
at java.awt.EventD ispatchThread.p umpEvents(Unkno wn Source)
at java.awt.EventD ispatchThread.p umpEvents(Unkno wn Source)
at java.awt.EventD ispatchThread.r un(Unknown Source)

can sumbody plz help me understand the problem?

[sivadhas2006]

HI,

Can you post your java code?

Regards,
M.Sivadhas.

[padmanabhanp]

Hai,
Please send your code.

By,
P.Padmanabhan