CHAPTER 9
SECTION 5
"Comparing Strings"

- compare using ==
  - true if the variables point to the same object
- compare using the equals method
  - true if the characters in each position are the same
  - refer to as the equivalence test
- if true using ==, will always be true using the equivalence test, but not necessarily vice-versa
- Strings are a special situation because the result will vary depending on how the String is created
  - if it is created using the new reserved word, the above reference case applies
  - if the String is created without using new, it will act as a primitive

Quick Check
1. 

   +------+     +----------+     +------+
   | str1 |---->| :String  |<----| str2 |
   +------+     |  ------  |     +------+
                +----------+
                | +------+ |
                | | Java | |
                | +------+ |
                +----------+

   +------+     +------------+
   | str3 |---->| :String    |
   +------+     |  ------    |
                +------------+
                | +--------+ |
                | | Oolong | |
                | +--------+ |
                +------------+