Java Programming

19 Basic Utility Classes

19.1 INTRODUCTION

This chapter discusses a number of classes defined within various Java packages. These are the classes that are used frequently and are of importance. A number of methods of the classes are discussed and examples provided wherever necessary.

19.2 THE STRINGTOKENIZER CLASS

This class is defined within java.util package. The StringTokenizer class allows an application to break a string into tokens. The StringTokenizer methods do not distinguish among identifiers, numbers and quoted strings, neither do they recognize and skip comments. Tokens are basically division of text into discrete parts as given by the user. StringTokenizer implements the Enumeration interface. Therefore, given an input string, ...