1) Characters use single quotes and strings use double quotes. (T)

2) Adding two characters together creates a string. (F)

3) The ASCII codes are the same as the first 128 Unicode codes. (T)

4) Characters can be compared just like ints. (T)

5) Calling the toUpperCase() method on a character capitalizes it. (F)

6) Calling the toUpperCase() method on a string capitalizes it. (F)

7) No String method actually changes the String that it's called on. (T)

8) The last character index in a string is equal to the string length. (F)

9) An out-of-bounds exception occurs if you access a character at an index
   less than 0. (T)

10) The contents of a String object are compared using the equals() method. (T)

11) A StringBuffer object is immutable. (F)

12) The charAt() method finds the index at which a character first appears. (F)

13) The indexOf() method returns -1 if the char parameter isn't in the string. (T)

14) In ASCII, capital letters are alphabetically after lower-case letters. (F)

15) The compareTo() method returns a positive number if the calling string
    is alphabetically AFTER the string parameter. (T)

16) Several methods in the String class, like substring(), are overloaded. (T)

17) The append() method concatenates something on the end of a String. (F)