created: 05/08/00; Revised: 07/22/02, 06/02/03, 02/20/06

CHAPTER 49D — StringBuffer Objects

This chapter discusses the StringBuffer class, which is useful for processing character data. The class String alone could be used for this, but the StringBuffer class is often faster and more convenient.

Chapter Topics:

Immutable Strings
charAt() method of String
Reversing a string
StringBuffer
Palindromes

Although the StringBuffer class is sometimes very useful, it is not essential. It is not covered in the AP Java computer science test.

QUESTION 1:

(Review: ) Examine the following code:

String data = new String("Turtle");

data = data + 's' ;

Does the last statement construct a new String?