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Java Source Code / Java Documentation » Science » javolution 5.2 » javolution.text

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

javolution.text .CharArray

CharArray

final public class CharArray implements CharSequence,Comparable(Code)

This class represents a character sequence backed up by a char array. Instances of this class are mutable and are typically used/reused to hold temporary text (unlike String they do not forces object creation).

Instances of this classes have the following properties:

They support equality or lexical comparison with any CharSequence (e.g. String).
They have the same hashcode than String and can be used to retrieve data from maps for which the keys are String instances.
They support fast conversions to primitive types (e.g. CharArray.toBoolean() Boolean , CharArray.toInt int ).

author:
Jean-Marie Dautelle
version:
4.0, June 16, 2006

Constructor Summary
public	CharArray() Default constructor.
public	CharArray(String string) Creates a character array from the specified String.
public	CharArray(CharSequence csq) Creates a character array from the specified character sequence.

Method Summary
public char[]	array() Returns the underlying array (read-only).
public char	charAt(int index) Returns the character at the specified index. Parameters: index - the index of the character starting at `0`.
public int	compareTo(Object seq) Compares this character array with the specified character sequence lexicographically. Parameters: seq - the character sequence to be compared.
public boolean	equals(Object that) Compares this character sequence against the specified object (`String` or `CharSequence`). Parameters: that - the object to compare with.
public boolean	equals(CharArray that) Compares this character array against the specified CharArray . Parameters: that - the character array to compare with.
public boolean	equals(String str) Compares this character array against the specified String. In case of equality, the CharArray keeps a reference to the String for future comparisons. Parameters: str - the string to compare with.
public int	hashCode() Returns the hash code for this CharArray .
public int	length() Returns the length of this character sequence.
public int	offset() Returns the offset of the first character in the underlying array.
final public int	offsetOf(CharSequence csq) Returns the offset within this character array of the first occurrence of the specified characters sequence searching forward from this character array CharArray.offset() to `offset() + length()`. Parameters: csq - a character sequence searched for.
final public int	offsetOf(char c) Returns the offset within this character array of the first occurrence of the specified character searching forward from this character array CharArray.offset() to `offset() + length()`. Parameters: c - the character to search for.
public CharArray	setArray(char[] array, int offset, int length) Sets the underlying array of this CharArray. Parameters: offset - the new offset. Parameters: array - the new underlying array. Parameters: length - the new length.
public CharSequence	subSequence(int start, int end) Returns a new character sequence that is a subsequence of this sequence. Parameters: start - the index of the first character inclusive. Parameters: end - the index of the last character exclusive.
public boolean	toBoolean() Returns the `boolean` represented by this character array.
public int	toInt() Returns the decimal `int` represented by this character array.
public int	toInt(int radix) Returns the `int` represented by this character array in the specified radix. Parameters: radix - the radix (e.g.
public long	toLong() Returns the decimal `long` represented by this character array.
public long	toLong(int radix) Returns the decimal `long` represented by this character array in the specified radix. Parameters: radix - the radix (e.g.
public String	toString() Returns the `String corresponding to this character sequence.`

Constructor Detail

CharArray
public CharArray()(Code)
	Default constructor.

CharArray
public CharArray(String string)(Code)
	Creates a character array from the specified String. Parameters: string - the string source.

CharArray
public CharArray(CharSequence csq)(Code)
	Creates a character array from the specified character sequence. Parameters: csq - the character sequence source.

Method Detail

array
public char[] array()(Code)
	Returns the underlying array (read-only). The array returned should not be modified (unfortunately there is no way to make an array immutable in Java). the underlying array.

charAt
public char charAt(int index)(Code)
	Returns the character at the specified index. Parameters: index - the index of the character starting at `0`. the character at the specified index of this character sequence. throws: IndexOutOfBoundsException - if `((index < 0) \|\| (index >= length))`

compareTo
public int compareTo(Object seq)(Code)
	Compares this character array with the specified character sequence lexicographically. Parameters: seq - the character sequence to be compared. `FastComparator.LEXICAL.compare(this, seq)` throws: ClassCastException - if the specifed object is not a`CharSequence`.

equals
public boolean equals(Object that)(Code)
	Compares this character sequence against the specified object (`String` or `CharSequence`). Parameters: that - the object to compare with. `true` if both objects represent the same sequence;`false` otherwise.

equals
public boolean equals(CharArray that)(Code)
	Compares this character array against the specified CharArray . Parameters: that - the character array to compare with. `true` if both objects represent the same sequence;`false` otherwise.

equals
public boolean equals(String str)(Code)
	Compares this character array against the specified String. In case of equality, the CharArray keeps a reference to the String for future comparisons. Parameters: str - the string to compare with. `true` if both objects represent the same sequence;`false` otherwise.

hashCode
public int hashCode()(Code)
	Returns the hash code for this CharArray . Note: Returns the same hashCode as `java.lang.String` (consistent with CharArray.equals ) the hash code value.

length
public int length()(Code)
	Returns the length of this character sequence. the number of characters (16-bits Unicode) composing thischaracter sequence.

offset
public int offset()(Code)
	Returns the offset of the first character in the underlying array. the offset of the first character.

offsetOf
final public int offsetOf(CharSequence csq)(Code)
	Returns the offset within this character array of the first occurrence of the specified characters sequence searching forward from this character array CharArray.offset() to `offset() + length()`. Parameters: csq - a character sequence searched for. the offset of the specified character sequence in the range`[offset(), offset() + length()[` or `-1` if the character sequence is not found.

offsetOf
final public int offsetOf(char c)(Code)
	Returns the offset within this character array of the first occurrence of the specified character searching forward from this character array CharArray.offset() to `offset() + length()`. Parameters: c - the character to search for. the offset of the specified character in the range`[offset(), offset() + length()[` or `-1` if the character is not found.

setArray
public CharArray setArray(char[] array, int offset, int length)(Code)
	Sets the underlying array of this CharArray. Parameters: offset - the new offset. Parameters: array - the new underlying array. Parameters: length - the new length. `this`

subSequence
public CharSequence subSequence(int start, int end)(Code)
	Returns a new character sequence that is a subsequence of this sequence. Parameters: start - the index of the first character inclusive. Parameters: end - the index of the last character exclusive. the character sequence starting at the specified`start` position and ending just before the specified`end` position. throws: IndexOutOfBoundsException - if `(start < 0) \|\| (end < 0) \|\|(start > end) \|\| (end > this.length())`

toBoolean
public boolean toBoolean()(Code)
	Returns the `boolean` represented by this character array. the corresponding `boolean` value. throws: NumberFormatException - if this character sequencedoes not contain a parsable `boolean`.

toInt
public int toInt()(Code)
	Returns the decimal `int` represented by this character array. `toInt(10)` throws: NumberFormatException - if this character sequencedoes not contain a parsable `int`.

toInt
public int toInt(int radix)(Code)
	Returns the `int` represented by this character array in the specified radix. Parameters: radix - the radix (e.g. `16` for hexadecimal). the corresponding `int` value. throws: NumberFormatException - if this character sequencedoes not contain a parsable `int`.

toLong
public long toLong()(Code)
	Returns the decimal `long` represented by this character array. the corresponding `long` value. throws: NumberFormatException - if this character sequencedoes not contain a parsable `long`.

toLong
public long toLong(int radix)(Code)
	Returns the decimal `long` represented by this character array in the specified radix. Parameters: radix - the radix (e.g. `16` for hexadecimal). the corresponding `long` value. throws: NumberFormatException - if this character sequencedoes not contain a parsable `long`.

toString
public String toString()(Code)
	Returns the `String corresponding to this character sequence. The String returned is always allocated on the heap and can safely be referenced elsewhere. the java.lang.String for this character sequence.`

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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