The wrapper classes, Boolean, Byte, Short, Character, Integer, Float, Double are used anytime you need to represent a primitive value as an Object. Yes, the exam does include questions on wrapper classes. The next version of my mock exam will have a new set of questions on the Byte wrapper class. I hope to have it up by 5:00 PM Pacific Time today, Friday, August 9.
Dan Chisholm<br />SCJP 1.4<br /> <br /><a href="http://www.danchisholm.net/" target="_blank" rel="nofollow">Try my mock exam.</a>
Please read read this about Wrapper Classes and come back if things are not clear. It's not perfect but will help to get the basic ideas. Try Dan's exam. -Barry [ August 09, 2002: Message edited by: Barry Gaunt ]