For a full review of Objects read chapter 3 in your book, starting on page 69.
For a more in depth review of attributes and constructors see section 3.4.1 in your book.
For a more in depth review of attributes and constructors see section 3.4.3 in your book.
For a more in depth review of attributes and constructors see section 3.4.2in your book.
Note: I am putting these here because students have asked them in the past, this is not a reflection of what will be on quizzes.
A: There a key words in Java that you cannot name variables or object types as, final is one of those key words. Integer is not though there is already a Object called Integer built into Java so if you created another class called Integer you might confuse the computer or whoever you were working with.