[SCJP] Generics questions form SCJP 5 study Guide

Hi,
I am reading the SCJP Study Guide by "Kathyy Sierra" and "Bert Bates", in the Generics chapter there is this question that I tried to comiple it but I am having compiler error.
here is the questions:


answers


ok now here what I put In my code to check if its working or not


here is the compile error:


Could you please help me to understand where is the error exactly?
There is something wrong with my example or the book is wrong?
Many Thanks,

Haithem

I am sorry,
It was a mistake in the book:


Thanks for your many responses