com.hp.util

Class Tokenizer

java.lang.Object

com.hp.util.Tokenizer

public class Tokenizer
extends Object

Utility class to provide a concise way to parse out string tokens and to allow repeated (infinite) parsing of the same string pattern.

Author:

Thomas Vachuska

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	circular
protected String	delimiters
protected StringTokenizer	st
protected String	string

Constructor Summary

Constructors

Constructor and Description
Tokenizer(String string, String delimiters) Create a new tokenizer on the string and using the given delimiter characters.
Tokenizer(String string, String delimiters, boolean circular) Create a new tokenizer on the string and using the given delimiter characters.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	circular() Returns true if the tokenizer is marked as a circular one.
String	delimiters() Get the delimiters string.
boolean	hasNext() Determine if there are any more tokens to be parsed.
String	next() Get the next token string.
int	nextInt() Get the next token as an integer.
long	nextLong() Get the next token as a long.
void	reset() Reset the tokenizer to point to the beginning of the original string.
String	string() Get the underlying string used to construct the tokenizer.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

st

protected StringTokenizer st

string

protected String string

delimiters

protected String delimiters

circular

protected boolean circular

Constructor Detail

Tokenizer

public Tokenizer(String string,
         String delimiters)

Create a new tokenizer on the string and using the given delimiter characters.

Parameters:

string - string to be tokenized

delimiters - string of delimiters

Tokenizer

public Tokenizer(String string,
         String delimiters,
         boolean circular)

Create a new tokenizer on the string and using the given delimiter characters.

Parameters:

string - string to be tokenized

delimiters - string of delimiters

circular - true if the tokenizer is to be a circular one

Method Detail

reset

public void reset()

Reset the tokenizer to point to the beginning of the original string.

hasNext

public boolean hasNext()

Determine if there are any more tokens to be parsed.

Returns:

true if more tokens are available; false otherwise; always returns true for circular tokenizer

next

public String next()

Get the next token string.

Returns:

next token string

nextInt

public int nextInt()

Get the next token as an integer.

Returns:

next token parsed into an integer value

nextLong

public long nextLong()

Get the next token as a long.

Returns:

next token parsed into a long value

circular

public boolean circular()

Returns true if the tokenizer is marked as a circular one.

Returns:

true if tokenizer is circular; false otherwise

string

public String string()

Get the underlying string used to construct the tokenizer.

Returns:

string being parsed into tokens

delimiters

public String delimiters()

Get the delimiters string.

Returns:

the delimiters string