Chapter 5 Test Review

1. Chapter 5 Test Review 16 Multiple Choice 16 True/False 6 Short Answer 57 points total

2. Multiple Choice and True/False • Effect of assignment operation for primitives and objects (addresses) • Differences between primitives and objects • Use of null assignment • What types of variables can use the null assignment • Effect of assignment operations when variable or objects passed to class methods. • Exceptions

3. Multiple Choice and True/False • Static methods and variables • what are they • what they can and can’t do • result of using them • Use of this reserved word • Interfaces • what are they • how to write them • how to use them • Implementing Comparable interface

4. Free-form questions • Explain why aliases can cause trouble for programmers who are not aware of them. Example. • Know types of exceptions, when they arise, example for each. • ArithmeticException - An arithmetic operation could not take place because of an illegal action such as division by zero or square root of a negative number • NullPointerException - An object was not instantiated (it had the value null) before a message was passed to it • IndexOutOfBoundsException - A numeric parameter used as an index into an object • Example: an array, String or Vector was out of range, such as charAt(-1)

5. Free-form questions • Assignment and comparison statements • how are they handled differently for primitives and objects • Reasons for and examples of data and methods declared static. • Implement compareTo method • Writing a static method • Define an interface class.