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Préférences
Moteurs de recherche
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JavaTM 2 Platform Std. Ed. v1.6.0
java.util
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Constructor Summary | |
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StringTokenizer(String str)
Constructs a string tokenizer for the specified string. |
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StringTokenizer(String str,
String delim)
Constructs a string tokenizer for the specified string. |
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StringTokenizer(String str,
String delim,
boolean returnDelims)
Constructs a string tokenizer for the specified string. |
Method Summary | |
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int |
countTokens()
Calculates the number of times that this tokenizer's nextToken method can be called before it generates an
exception. |
boolean |
hasMoreElements()
Returns the same value as the hasMoreTokens
method. |
boolean |
hasMoreTokens()
Tests if there are more tokens available from this tokenizer's string. |
Object |
nextElement()
Returns the same value as the nextToken method,
except that its declared return value is Object rather than
String . |
String |
nextToken()
Returns the next token from this string tokenizer. |
String |
nextToken(String delim)
Returns the next token in this string tokenizer's string. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public StringTokenizer(String str, String delim, boolean returnDelims)
delim
argument are the delimiters
for separating tokens.
If the returnDelims
flag is true
, then
the delimiter characters are also returned as tokens. Each
delimiter is returned as a string of length one. If the flag is
false
, the delimiter characters are skipped and only
serve as separators between tokens.
Note that if delim is null, this constructor does not throw an exception. However, trying to invoke other methods on the resulting StringTokenizer may result in a NullPointerException.
str
- a string to be parsed.delim
- the delimiters.returnDelims
- flag indicating whether to return the delimiters
as tokens.
NullPointerException
- if str is null
public StringTokenizer(String str, String delim)
delim
argument are the delimiters
for separating tokens. Delimiter characters themselves will not
be treated as tokens.
Note that if delim is null, this constructor does not throw an exception. However, trying to invoke other methods on the resulting StringTokenizer may result in a NullPointerException.
str
- a string to be parsed.delim
- the delimiters.
NullPointerException
- if str is null
public StringTokenizer(String str)
" \t\n\r\f"
: the space character,
the tab character, the newline character, the carriage-return character,
and the form-feed character. Delimiter characters themselves will
not be treated as tokens.
str
- a string to be parsed.
NullPointerException
- if str is null
Method Detail |
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public boolean hasMoreTokens()
true
if and only if there is at least one token
in the string after the current position; false
otherwise.public String nextToken()
NoSuchElementException
- if there are no more tokens in this
tokenizer's string.public String nextToken(String delim)
delim
- the new delimiters.
NoSuchElementException
- if there are no more tokens in this
tokenizer's string.
NullPointerException
- if delim is null
public boolean hasMoreElements()
hasMoreTokens
method. It exists so that this class can implement the
Enumeration
interface.
hasMoreElements
in interface Enumeration<Object>
true
if there are more tokens;
false
otherwise.Enumeration
,
hasMoreTokens()
public Object nextElement()
nextToken
method,
except that its declared return value is Object
rather than
String
. It exists so that this class can implement the
Enumeration
interface.
nextElement
in interface Enumeration<Object>
NoSuchElementException
- if there are no more tokens in this
tokenizer's string.Enumeration
,
nextToken()
public int countTokens()
nextToken
method can be called before it generates an
exception. The current position is not advanced.
nextToken()