I have downloaded the programs from your website just in case I had keystroke errors. I'm working page 194 chapter 5 "Multiple Constructors" and when I compile and run the program I get the following error:
lava.lang.nocalssdeffounderror: sphere
Exception in thread "main"
I'm using NetBeans IDE 3.5.1
Could you tell me what I may be doing wrong?

Thank You,
Tony

Maybe it's just a typo but shouldn't 'sphere' be 'Sphere'; by covention all classes in java should begin with a capital letter.

Cheers

Martyn

You have done something wrong with the packgage declaration. In the NetBeans you import a filesystem. Let's say I import the directory "c:\myclasses", that is the filesystem, let's say I have some more directories under "c:\myclasses", like
"com\myself\myjava" ( so it looks like: "c:\myclasses\com\myself\myjava" the first thing I have to write in my java code file is
"package com.myself.myjava;"
I hope this is of some help
best regards
rune