Hi, I have just recently started studying Java and therfore not to sure about solving these problems because the whole language is pretty strange to me (it’s the ugliest language I’ve come across so far!!!), any way the thing is when I try to compile my program I get the following error:

'Exception in thread "main" Java.lang.NoClassDefFoundError: Welcome1/Class'

I usually run them at uni and have no problem but I have just downloaded J2SDK from sun's web site and installed it and that's the error I get. Am I missing something? Any help would be appreciated

!!!THANKS IN ADVANCE!!!