Determines the number of char values needed to represent the specified character (Unicode code point).

  Determines the number of char values needed to represent the specified character (Unicode code point). If the specified character is equal to or greater than 0x10000, then the method returns 2. Otherwise, the method returns 1.

This method doesn't validate the specified character to be a valid Unicode code point. The caller must validate the character value using isValidCodePoint if necessary.
Returns: 2 if the character is a valid supplementary character; 1 otherwise.
Parameters:
- codePoint - the character (Unicode code point) to be tested.
Since: 1.5
See Also: Character.isSupplementaryCodePoint(int),

  Returns the value of this Character object.

  Returns the value of this Character object.
Returns: the primitive char value represented by this object.

  Returns the code point at the given index of the char array.

  Returns the code point at the given index of the
char array. If the char value at
the given index in the char array is in the
high-surrogate range, the following index is less than the
length of the char array, and the
char value at the following index is in the
low-surrogate range, then the supplementary code point
corresponding to this surrogate pair is returned. Otherwise,
the char value at the given index is returned.
Returns: the Unicode code point at the given index
Parameters:
- a - the char array
- index - the index to the char values (Unicode code units) in the char array to be converted
Throws:
- NullPointerException - if a is null.
- IndexOutOfBoundsException - if the value index is negative or not less than the length of the char array.
Since: 1.5

  Returns the code point at the given index of the char array, where only array elements with index less than limit can be used.

  Returns the code point at the given index of the
char array, where only array elements with
index less than limit can be used. If
the char value at the given index in the
char array is in the high-surrogate range, the
following index is less than the limit, and the
char value at the following index is in the
low-surrogate range, then the supplementary code point
corresponding to this surrogate pair is returned. Otherwise,
the char value at the given index is returned.
Returns: the Unicode code point at the given index
Parameters:
- a - the char array
- index - the index to the char values (Unicode code units) in the char array to be converted
- limit - the index after the last array element that can be used in the char array
Throws:
- NullPointerException - if a is null.
- IndexOutOfBoundsException - if the index argument is negative or not less than the limit argument, or if the limit argument is negative or greater than the length of the char array.
Since: 1.5

  Returns the code point at the given index of the CharSequence.

  Returns the code point at the given index of the
CharSequence. If the char value at
the given index in the CharSequence is in the
high-surrogate range, the following index is less than the
length of the CharSequence, and the
char value at the following index is in the
low-surrogate range, then the supplementary code point
corresponding to this surrogate pair is returned. Otherwise,
the char value at the given index is returned.
Returns: the Unicode code point at the given index
Parameters:
- seq - a sequence of char values (Unicode code units)
- index - the index to the char values (Unicode code units) in seq to be converted
Throws:
- NullPointerException - if seq is null.
- IndexOutOfBoundsException - if the value index is negative or not less than {@link CharSequence#length() seq.length()}.
Since: 1.5

  Returns the code point preceding the given index of the char array.

  Returns the code point preceding the given index of the
char array. If the char value at
(index - 1) in the char array is in
the low-surrogate range, (index - 2) is not
negative, and the char value at (index -
2) in the char array is in the
high-surrogate range, then the supplementary code point
corresponding to this surrogate pair is returned. Otherwise,
the char value at (index - 1) is
returned.
Returns: the Unicode code point value before the given index.
Parameters:
- a - the char array
- index - the index following the code point that should be returned
Throws:
- NullPointerException - if a is null.
- IndexOutOfBoundsException - if the index argument is less than 1 or greater than the length of the char array
Since: 1.5

  Returns the code point preceding the given index of the char array, where only array elements with index greater than or equal to start can be used.

  Returns the code point preceding the given index of the
char array, where only array elements with
index greater than or equal to start
can be used. If the char value at (index -
1) in the char array is in the
low-surrogate range, (index - 2) is not less than
start, and the char value at
(index - 2) in the char array is in
the high-surrogate range, then the supplementary code point
corresponding to this surrogate pair is returned. Otherwise,
the char value at (index - 1) is
returned.
Returns: the Unicode code point value before the given index.
Parameters:
- a - the char array
- index - the index following the code point that should be returned
- start - the index of the first array element in the char array
Throws:
- NullPointerException - if a is null.
- IndexOutOfBoundsException - if the index argument is not greater than the start argument or is greater than the length of the char array, or if the start argument is negative or not less than the length of the char array.
Since: 1.5

  Returns the code point preceding the given index of the CharSequence.

  Returns the code point preceding the given index of the
CharSequence. If the char value at
(index - 1) in the CharSequence is in
the low-surrogate range, (index - 2) is not
negative, and the char value at (index -
2) in the CharSequence is in the
high-surrogate range, then the supplementary code point
corresponding to this surrogate pair is returned. Otherwise,
the char value at (index - 1) is
returned.
Returns: the Unicode code point value before the given index.
Parameters:
- seq - the CharSequence instance
- index - the index following the code point that should be returned
Throws:
- NullPointerException - if seq is null.
- IndexOutOfBoundsException - if the index argument is less than 1 or greater than {@link CharSequence#length() seq.length()}.
Since: 1.5

  Returns the number of Unicode code points in a subarray of the char array argument.

  Returns the number of Unicode code points in a subarray of the
char array argument. The offset
argument is the index of the first char of the
subarray and the count argument specifies the
length of the subarray in chars. Unpaired
surrogates within the subarray count as one code point each.
Returns: the number of Unicode code points in the specified subarray
Parameters:
- a - the char array
- offset - the index of the first char in the given char array
- count - the length of the subarray in chars
Throws:
- NullPointerException - if a is null.
- IndexOutOfBoundsException - if offset or count is negative, or if offset + count is larger than the length of the given array.
Since: 1.5

  Returns the number of Unicode code points in the text range of the specified char sequence.

  Returns the number of Unicode code points in the text range of
the specified char sequence. The text range begins at the
specified beginIndex and extends to the
char at index endIndex - 1. Thus the
length (in chars) of the text range is
endIndex-beginIndex. Unpaired surrogates within
the text range count as one code point each.
Returns: the number of Unicode code points in the specified text range
Parameters:
- seq - the char sequence
- beginIndex - the index to the first char of the text range.
- endIndex - the index after the last char of the text range.
Throws:
- NullPointerException - if seq is null.
- IndexOutOfBoundsException - if the beginIndex is negative, or endIndex is larger than the length of the given sequence, or beginIndex is larger than endIndex.
Since: 1.5

  Compares two Character objects numerically.

  Compares two Character objects numerically.
Returns: the value 0 if the argument Character is equal to this Character; a value less than 0 if this Character is numerically less than the Character argument; and a value greater than 0 if this Character is numerically greater than the Character argument (unsigned comparison). Note that this is strictly a numerical comparison; it is not locale-dependent.
Parameters:
- anotherCharacter - the Character to be compared.
Since: 1.2

  Returns the numeric value of the character ch in the specified radix.

  Returns the numeric value of the character ch in the specified radix.

If the radix is not in the range MIN_RADIX <= radix <= MAX_RADIX or if the value of ch is not a valid digit in the specified radix, -1 is returned. A character is a valid digit if at least one of the following is true:

• The method isDigit is true of the character and the Unicode decimal digit value of the character (or its single-character decomposition) is less than the specified radix. In this case the decimal digit value is returned.
• The character is one of the uppercase Latin letters 'A' through 'Z' and its code is less than radix + 'A' - 10. In this case, ch - 'A' + 10 is returned.
• The character is one of the lowercase Latin letters 'a' through 'z' and its code is less than radix + 'a' - 10. In this case, ch - 'a' + 10 is returned.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.digit(int, int) method.
Returns: the numeric value represented by the character in the specified radix.
Parameters:
- ch - the character to be converted.
- radix - the radix.
See Also: Character.forDigit(int, int), Character.isDigit(char),

  Returns the numeric value of the specified character (Unicode code point) in the specified radix.

  Returns the numeric value of the specified character (Unicode code point) in the specified radix.

If the radix is not in the range MIN_RADIX <= radix <= MAX_RADIX or if the character is not a valid digit in the specified radix, -1 is returned. A character is a valid digit if at least one of the following is true:

• The method isDigit(codePoint) is true of the character and the Unicode decimal digit value of the character (or its single-character decomposition) is less than the specified radix. In this case the decimal digit value is returned.
• The character is one of the uppercase Latin letters 'A' through 'Z' and its code is less than radix + 'A' - 10. In this case, ch - 'A' + 10 is returned.
• The character is one of the lowercase Latin letters 'a' through 'z' and its code is less than radix + 'a' - 10. In this case, ch - 'a' + 10 is returned.

Returns: the numeric value represented by the character in the specified radix.
Parameters:
- codePoint - the character (Unicode code point) to be converted.
- radix - the radix.
Since: 1.5
See Also: Character.forDigit(int, int), Character.isDigit(int),

  Compares this object against the specified object.

  Compares this object against the specified object.
The result is true if and only if the argument is not
null and is a Character object that
represents the same char value as this object.
Returns: true if the objects are the same; false otherwise.
Parameters:
- obj - the object to compare with.

  Determines the character representation for a specific digit in the specified radix.

  Determines the character representation for a specific digit in the specified radix. If the value of radix is not a valid radix, or the value of digit is not a valid digit in the specified radix, the null character ('\u0000') is returned.

The radix argument is valid if it is greater than or equal to MIN_RADIX and less than or equal to MAX_RADIX. The digit argument is valid if 0 <=digit < radix.

If the digit is less than 10, then '0' + digit is returned. Otherwise, the value 'a' + digit - 10 is returned.
Returns: the char representation of the specified digit in the specified radix.
Parameters:
- digit - the number to convert to a character.
- radix - the radix.
See Also: Character.MIN_RADIX, Character.MAX_RADIX, Character.digit(char, int),

  Returns the Unicode directionality property for the given character.

  Returns the Unicode directionality property for the given character. Character directionality is used to calculate the visual ordering of text. The directionality value of undefined char values is DIRECTIONALITY_UNDEFINED.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.getDirectionality(int) method.
Returns: the directionality property of the char value.
Parameters:
- ch - char for which the directionality property is requested.
Since: 1.4
See Also: Character.DIRECTIONALITY_UNDEFINED, Character.DIRECTIONALITY_LEFT_TO_RIGHT, Character.DIRECTIONALITY_RIGHT_TO_LEFT, Character.DIRECTIONALITY_RIGHT_TO_LEFT_ARABIC, Character.DIRECTIONALITY_EUROPEAN_NUMBER, Character.DIRECTIONALITY_EUROPEAN_NUMBER_SEPARATOR, Character.DIRECTIONALITY_EUROPEAN_NUMBER_TERMINATOR, Character.DIRECTIONALITY_ARABIC_NUMBER, Character.DIRECTIONALITY_COMMON_NUMBER_SEPARATOR, Character.DIRECTIONALITY_NONSPACING_MARK, Character.DIRECTIONALITY_BOUNDARY_NEUTRAL, Character.DIRECTIONALITY_PARAGRAPH_SEPARATOR, Character.DIRECTIONALITY_SEGMENT_SEPARATOR, Character.DIRECTIONALITY_WHITESPACE, Character.DIRECTIONALITY_OTHER_NEUTRALS, Character.DIRECTIONALITY_LEFT_TO_RIGHT_EMBEDDING, Character.DIRECTIONALITY_LEFT_TO_RIGHT_OVERRIDE, Character.DIRECTIONALITY_RIGHT_TO_LEFT_EMBEDDING, Character.DIRECTIONALITY_RIGHT_TO_LEFT_OVERRIDE, Character.DIRECTIONALITY_POP_DIRECTIONAL_FORMAT,

  Returns the Unicode directionality property for the given character (Unicode code point).

  Returns the Unicode directionality property for the given
character (Unicode code point). Character directionality is
used to calculate the visual ordering of text. The
directionality value of undefined character is Character.DIRECTIONALITY_UNDEFINED.
Returns: the directionality property of the character.
Parameters:
- codePoint - the character (Unicode code point) for which the directionality property is requested.
Since: 1.5
See Also: DIRECTIONALITY_UNDEFINED, DIRECTIONALITY_LEFT_TO_RIGHT, DIRECTIONALITY_RIGHT_TO_LEFT, DIRECTIONALITY_RIGHT_TO_LEFT_ARABIC, DIRECTIONALITY_EUROPEAN_NUMBER, DIRECTIONALITY_EUROPEAN_NUMBER_SEPARATOR, DIRECTIONALITY_EUROPEAN_NUMBER_TERMINATOR, DIRECTIONALITY_ARABIC_NUMBER, DIRECTIONALITY_COMMON_NUMBER_SEPARATOR, DIRECTIONALITY_NONSPACING_MARK, DIRECTIONALITY_BOUNDARY_NEUTRAL, DIRECTIONALITY_PARAGRAPH_SEPARATOR, DIRECTIONALITY_SEGMENT_SEPARATOR, DIRECTIONALITY_WHITESPACE, DIRECTIONALITY_OTHER_NEUTRALS, DIRECTIONALITY_LEFT_TO_RIGHT_EMBEDDING, DIRECTIONALITY_LEFT_TO_RIGHT_OVERRIDE, DIRECTIONALITY_RIGHT_TO_LEFT_EMBEDDING, DIRECTIONALITY_RIGHT_TO_LEFT_OVERRIDE, DIRECTIONALITY_POP_DIRECTIONAL_FORMAT,

  Returns the int value that the specified Unicode character represents.

  Returns the int value that the specified Unicode character represents. For example, the character '\u216C' (the roman numeral fifty) will return an int with a value of 50.

The letters A-Z in their uppercase ('\u0041' through '\u005A'), lowercase ('\u0061' through '\u007A'), and full width variant ('\uFF21' through '\uFF3A' and '\uFF41' through '\uFF5A') forms have numeric values from 10 through 35. This is independent of the Unicode specification, which does not assign numeric values to these char values.

If the character does not have a numeric value, then -1 is returned. If the character has a numeric value that cannot be represented as a nonnegative integer (for example, a fractional value), then -2 is returned.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.getNumericValue(int) method.
Returns: the numeric value of the character, as a nonnegative int value; -2 if the character has a numeric value that is not a nonnegative integer; -1 if the character has no numeric value.
Parameters:
- ch - the character to be converted.
Since: 1.1
See Also: Character.forDigit(int, int), Character.isDigit(char),

  Returns the int value that the specified character (Unicode code point) represents.

  Returns the int value that the specified character (Unicode code point) represents. For example, the character '\u216C' (the Roman numeral fifty) will return an int with a value of 50.

The letters A-Z in their uppercase ('\u0041' through '\u005A'), lowercase ('\u0061' through '\u007A'), and full width variant ('\uFF21' through '\uFF3A' and '\uFF41' through '\uFF5A') forms have numeric values from 10 through 35. This is independent of the Unicode specification, which does not assign numeric values to these char values.

If the character does not have a numeric value, then -1 is returned. If the character has a numeric value that cannot be represented as a nonnegative integer (for example, a fractional value), then -2 is returned.
Returns: the numeric value of the character, as a nonnegative int value; -2 if the character has a numeric value that is not a nonnegative integer; -1 if the character has no numeric value.
Parameters:
- codePoint - the character (Unicode code point) to be converted.
Since: 1.5
See Also: Character.forDigit(int, int), Character.isDigit(int),

  Returns a value indicating a character's general category.

  Returns a value indicating a character's general category.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.getType(int) method.
Returns: a value of type int representing the character's general category.
Parameters:
- ch - the character to be tested.
Since: 1.1
See Also: Character.COMBINING_SPACING_MARK, Character.CONNECTOR_PUNCTUATION, Character.CONTROL, Character.CURRENCY_SYMBOL, Character.DASH_PUNCTUATION, Character.DECIMAL_DIGIT_NUMBER, Character.ENCLOSING_MARK, Character.END_PUNCTUATION, Character.FINAL_QUOTE_PUNCTUATION, Character.FORMAT, Character.INITIAL_QUOTE_PUNCTUATION, Character.LETTER_NUMBER, Character.LINE_SEPARATOR, Character.LOWERCASE_LETTER, Character.MATH_SYMBOL, Character.MODIFIER_LETTER, Character.MODIFIER_SYMBOL, Character.NON_SPACING_MARK, Character.OTHER_LETTER, Character.OTHER_NUMBER, Character.OTHER_PUNCTUATION, Character.OTHER_SYMBOL, Character.PARAGRAPH_SEPARATOR, Character.PRIVATE_USE, Character.SPACE_SEPARATOR, Character.START_PUNCTUATION, Character.SURROGATE, Character.TITLECASE_LETTER, Character.UNASSIGNED, Character.UPPERCASE_LETTER,

  Returns a value indicating a character's general category.

  Returns a value indicating a character's general category.
Returns: a value of type int representing the character's general category.
Parameters:
- codePoint - the character (Unicode code point) to be tested.
Since: 1.5
See Also: COMBINING_SPACING_MARK, CONNECTOR_PUNCTUATION, CONTROL, CURRENCY_SYMBOL, DASH_PUNCTUATION, DECIMAL_DIGIT_NUMBER, ENCLOSING_MARK, END_PUNCTUATION, FINAL_QUOTE_PUNCTUATION, FORMAT, INITIAL_QUOTE_PUNCTUATION, LETTER_NUMBER, LINE_SEPARATOR, LOWERCASE_LETTER, MATH_SYMBOL, MODIFIER_LETTER, MODIFIER_SYMBOL, NON_SPACING_MARK, OTHER_LETTER, OTHER_NUMBER, OTHER_PUNCTUATION, OTHER_SYMBOL, PARAGRAPH_SEPARATOR, PRIVATE_USE, SPACE_SEPARATOR, START_PUNCTUATION, SURROGATE, TITLECASE_LETTER, UNASSIGNED, UPPERCASE_LETTER,

  Returns a hash code for this Character.

  Returns a hash code for this Character.
Returns: a hash code value for this object.

  Determines if a character is defined in Unicode.

  Determines if a character is defined in Unicode.

A character is defined if at least one of the following is true:

• It has an entry in the UnicodeData file.
• It has a value in a range defined by the UnicodeData file.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.isDefined(int) method.
Returns: true if the character has a defined meaning in Unicode; false otherwise.
Parameters:
- ch - the character to be tested
Since: 1.0.2
See Also: Character.isDigit(char), Character.isLetter(char), Character.isLetterOrDigit(char), Character.isLowerCase(char), Character.isTitleCase(char), Character.isUpperCase(char),

  Determines if a character (Unicode code point) is defined in Unicode.

  Determines if a character (Unicode code point) is defined in Unicode.

A character is defined if at least one of the following is true:

• It has an entry in the UnicodeData file.
• It has a value in a range defined by the UnicodeData file.

Returns: true if the character has a defined meaning in Unicode; false otherwise.
Parameters:
- codePoint - the character (Unicode code point) to be tested.
Since: 1.5
See Also: Character.isDigit(int), Character.isLetter(int), Character.isLetterOrDigit(int), Character.isLowerCase(int), Character.isTitleCase(int), Character.isUpperCase(int),

  Determines if the specified character is a digit.

  Determines if the specified character is a digit.

A character is a digit if its general category type, provided by Character.getType(ch), is DECIMAL_DIGIT_NUMBER.

Some Unicode character ranges that contain digits:

• '\u0030' through '\u0039', ISO-LATIN-1 digits ('0' through '9')
• '\u0660' through '\u0669', Arabic-Indic digits
• '\u06F0' through '\u06F9', Extended Arabic-Indic digits
• '\u0966' through '\u096F', Devanagari digits
• '\uFF10' through '\uFF19', Fullwidth digits

Many other character ranges contain digits as well.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.isDigit(int) method.
Returns: true if the character is a digit; false otherwise.
Parameters:
- ch - the character to be tested.
See Also: Character.digit(char, int), Character.forDigit(int, int), Character.getType(char),

  Determines if the specified character (Unicode code point) is a digit.

  Determines if the specified character (Unicode code point) is a digit.

A character is a digit if its general category type, provided by getType(codePoint), is DECIMAL_DIGIT_NUMBER.

Some Unicode character ranges that contain digits:

• '\u0030' through '\u0039', ISO-LATIN-1 digits ('0' through '9')
• '\u0660' through '\u0669', Arabic-Indic digits
• '\u06F0' through '\u06F9', Extended Arabic-Indic digits
• '\u0966' through '\u096F', Devanagari digits
• '\uFF10' through '\uFF19', Fullwidth digits

Many other character ranges contain digits as well.
Returns: true if the character is a digit; false otherwise.
Parameters:
- codePoint - the character (Unicode code point) to be tested.
Since: 1.5
See Also: Character.forDigit(int, int), Character.getType(int),

  Determines if the given char value is a high-surrogate code unit (also known as leading-surrogate code unit).

  Determines if the given char value is a high-surrogate code unit (also known as leading-surrogate code unit). Such values do not represent characters by themselves, but are used in the representation of supplementary characters in the UTF-16 encoding.

This method returns true if and only if

ch >= '\uD800' && ch <= '\uDBFF'
 

is true.
Returns: true if the char value is between '\uD800' and '\uDBFF' inclusive; false otherwise.
Parameters:
- ch - the char value to be tested.
Since: 1.5
See Also: Character.isLowSurrogate(char), Character.UnicodeBlock.of(int),

  Determines if the specified character should be regarded as an ignorable character in a Java identifier or a Unicode identifier.

  Determines if the specified character should be regarded as an ignorable character in a Java identifier or a Unicode identifier.

The following Unicode characters are ignorable in a Java identifier or a Unicode identifier:

• ISO control characters that are not whitespace
  • '\u0000' through '\u0008'
  • '\u000E' through '\u001B'
  • '\u007F' through '\u009F'
• all characters that have the FORMAT general category value

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.isIdentifierIgnorable(int) method.
Returns: true if the character is an ignorable control character that may be part of a Java or Unicode identifier; false otherwise.
Parameters:
- ch - the character to be tested.
Since: 1.1
See Also: Character.isJavaIdentifierPart(char), Character.isUnicodeIdentifierPart(char),

  Determines if the specified character (Unicode code point) should be regarded as an ignorable character in a Java identifier or a Unicode identifier.

  Determines if the specified character (Unicode code point) should be regarded as an ignorable character in a Java identifier or a Unicode identifier.

The following Unicode characters are ignorable in a Java identifier or a Unicode identifier:

• ISO control characters that are not whitespace
  • '\u0000' through '\u0008'
  • '\u000E' through '\u001B'
  • '\u007F' through '\u009F'
• all characters that have the FORMAT general category value

Returns: true if the character is an ignorable control character that may be part of a Java or Unicode identifier; false otherwise.
Parameters:
- codePoint - the character (Unicode code point) to be tested.
Since: 1.5
See Also: Character.isJavaIdentifierPart(int), Character.isUnicodeIdentifierPart(int),

  Determines if the specified character is an ISO control character.

  Determines if the specified character is an ISO control character. A character is considered to be an ISO control character if its code is in the range '\u0000' through '\u001F' or in the range '\u007F' through '\u009F'.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.isISOControl(int) method.
Returns: true if the character is an ISO control character; false otherwise.
Parameters:
- ch - the character to be tested.
Since: 1.1
See Also: Character.isSpaceChar(char), Character.isWhitespace(char),

  Determines if the referenced character (Unicode code point) is an ISO control character.

  Determines if the referenced character (Unicode code point) is an ISO control
character. A character is considered to be an ISO control
character if its code is in the range '\u0000'
through '\u001F' or in the range
'\u007F' through '\u009F'.
Returns: true if the character is an ISO control character; false otherwise.
Parameters:
- codePoint - the character (Unicode code point) to be tested.
Since: 1.5
See Also: Character.isSpaceChar(int), Character.isWhitespace(int),

  Determines if the specified character may be part of a Java identifier as other than the first character.

  Determines if the specified character may be part of a Java identifier as other than the first character.

A character may be part of a Java identifier if any of the following are true:

• it is a letter
• it is a currency symbol (such as '$')
• it is a connecting punctuation character (such as '_')
• it is a digit
• it is a numeric letter (such as a Roman numeral character)
• it is a combining mark
• it is a non-spacing mark
• isIdentifierIgnorable returns true for the character

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.isJavaIdentifierPart(int) method.
Returns: true if the character may be part of a Java identifier; false otherwise.
Parameters:
- ch - the character to be tested.
Since: 1.1
See Also: Character.isIdentifierIgnorable(char), Character.isJavaIdentifierStart(char), Character.isLetterOrDigit(char), Character.isUnicodeIdentifierPart(char), SourceVersion.isIdentifier(CharSequence),

  Determines if the character (Unicode code point) may be part of a Java identifier as other than the first character.

  Determines if the character (Unicode code point) may be part of a Java identifier as other than the first character.

A character may be part of a Java identifier if any of the following are true:

• it is a letter
• it is a currency symbol (such as '$')
• it is a connecting punctuation character (such as '_')
• it is a digit
• it is a numeric letter (such as a Roman numeral character)
• it is a combining mark
• it is a non-spacing mark
• isIdentifierIgnorable(codePoint) returns true for the character

Returns: true if the character may be part of a Java identifier; false otherwise.
Parameters:
- codePoint - the character (Unicode code point) to be tested.
Since: 1.5
See Also: Character.isIdentifierIgnorable(int), Character.isJavaIdentifierStart(int), Character.isLetterOrDigit(int), Character.isUnicodeIdentifierPart(int), SourceVersion.isIdentifier(CharSequence),

  Determines if the specified character is permissible as the first character in a Java identifier.

  Determines if the specified character is permissible as the first character in a Java identifier.

A character may start a Java identifier if and only if one of the following conditions is true:

• isLetter(ch) returns true
• getType(ch) returns LETTER_NUMBER
• ch is a currency symbol (such as "$")
• ch is a connecting punctuation character (such as "_").

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.isJavaIdentifierStart(int) method.
Returns: true if the character may start a Java identifier; false otherwise.
Parameters:
- ch - the character to be tested.
Since: 1.1
See Also: Character.isJavaIdentifierPart(char), Character.isLetter(char), Character.isUnicodeIdentifierStart(char), SourceVersion.isIdentifier(CharSequence),

  Determines if the character (Unicode code point) is permissible as the first character in a Java identifier.

  Determines if the character (Unicode code point) is permissible as the first character in a Java identifier.

A character may start a Java identifier if and only if one of the following conditions is true:

• isLetter(codePoint) returns true
• getType(codePoint) returns LETTER_NUMBER
• the referenced character is a currency symbol (such as "$")
• the referenced character is a connecting punctuation character (such as "_").

Returns: true if the character may start a Java identifier; false otherwise.
Parameters:
- codePoint - the character (Unicode code point) to be tested.
Since: 1.5
See Also: Character.isJavaIdentifierPart(int), Character.isLetter(int), Character.isUnicodeIdentifierStart(int), SourceVersion.isIdentifier(CharSequence),

  Determines if the specified character is permissible as the first character in a Java identifier.

  Determines if the specified character is permissible as the first character in a Java identifier.

A character may start a Java identifier if and only if one of the following is true:

• isLetter(ch) returns true
• getType(ch) returns LETTER_NUMBER
• ch is a currency symbol (such as "$")
• ch is a connecting punctuation character (such as "_").

Returns: true if the character may start a Java identifier; false otherwise.
Parameters:
- ch - the character to be tested.
Since: 1.02
See Also: Character.isJavaLetterOrDigit(char), Character.isJavaIdentifierStart(char), Character.isJavaIdentifierPart(char), Character.isLetter(char), Character.isLetterOrDigit(char), Character.isUnicodeIdentifierStart(char),

  Determines if the specified character may be part of a Java identifier as other than the first character.

  Determines if the specified character may be part of a Java identifier as other than the first character.

A character may be part of a Java identifier if and only if any of the following are true:

• it is a letter
• it is a currency symbol (such as '$')
• it is a connecting punctuation character (such as '_')
• it is a digit
• it is a numeric letter (such as a Roman numeral character)
• it is a combining mark
• it is a non-spacing mark
• isIdentifierIgnorable returns true for the character.

Returns: true if the character may be part of a Java identifier; false otherwise.
Parameters:
- ch - the character to be tested.
Since: 1.02
See Also: Character.isJavaLetter(char), Character.isJavaIdentifierStart(char), Character.isJavaIdentifierPart(char), Character.isLetter(char), Character.isLetterOrDigit(char), Character.isUnicodeIdentifierPart(char), Character.isIdentifierIgnorable(char),

  Determines if the specified character is a letter.

  Determines if the specified character is a letter.

A character is considered to be a letter if its general category type, provided by Character.getType(ch), is any of the following:

• UPPERCASE_LETTER
• LOWERCASE_LETTER
• TITLECASE_LETTER
• MODIFIER_LETTER
• OTHER_LETTER

Not all letters have case. Many characters are letters but are neither uppercase nor lowercase nor titlecase.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.isLetter(int) method.
Returns: true if the character is a letter; false otherwise.
Parameters:
- ch - the character to be tested.
See Also: Character.isDigit(char), Character.isJavaIdentifierStart(char), Character.isJavaLetter(char), Character.isJavaLetterOrDigit(char), Character.isLetterOrDigit(char), Character.isLowerCase(char), Character.isTitleCase(char), Character.isUnicodeIdentifierStart(char), Character.isUpperCase(char),

  Determines if the specified character (Unicode code point) is a letter.

  Determines if the specified character (Unicode code point) is a letter.

A character is considered to be a letter if its general category type, provided by getType(codePoint), is any of the following:

• UPPERCASE_LETTER
• LOWERCASE_LETTER
• TITLECASE_LETTER
• MODIFIER_LETTER
• OTHER_LETTER

Not all letters have case. Many characters are letters but are neither uppercase nor lowercase nor titlecase.
Returns: true if the character is a letter; false otherwise.
Parameters:
- codePoint - the character (Unicode code point) to be tested.
Since: 1.5
See Also: Character.isDigit(int), Character.isJavaIdentifierStart(int), Character.isLetterOrDigit(int), Character.isLowerCase(int), Character.isTitleCase(int), Character.isUnicodeIdentifierStart(int), Character.isUpperCase(int),

  Determines if the specified character is a letter or digit.

  Determines if the specified character is a letter or digit.

A character is considered to be a letter or digit if either Character.isLetter(char ch) or Character.isDigit(char ch) returns true for the character.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.isLetterOrDigit(int) method.
Returns: true if the character is a letter or digit; false otherwise.
Parameters:
- ch - the character to be tested.
Since: 1.0.2
See Also: Character.isDigit(char), Character.isJavaIdentifierPart(char), Character.isJavaLetter(char), Character.isJavaLetterOrDigit(char), Character.isLetter(char), Character.isUnicodeIdentifierPart(char),

  Determines if the specified character (Unicode code point) is a letter or digit.

  Determines if the specified character (Unicode code point) is a letter or digit.

A character is considered to be a letter or digit if either isLetter(codePoint) or isDigit(codePoint) returns true for the character.
Returns: true if the character is a letter or digit; false otherwise.
Parameters:
- codePoint - the character (Unicode code point) to be tested.
Since: 1.5
See Also: Character.isDigit(int), Character.isJavaIdentifierPart(int), Character.isLetter(int), Character.isUnicodeIdentifierPart(int),

  Determines if the specified character is a lowercase character.

  Determines if the specified character is a lowercase character.

A character is lowercase if its general category type, provided by Character.getType(ch), is LOWERCASE_LETTER.

The following are examples of lowercase characters:

 a b c d e f g h i j k l m n o p q r s t u v w x y z
 '\u00DF' '\u00E0' '\u00E1' '\u00E2' '\u00E3' '\u00E4' '\u00E5' '\u00E6' 
 '\u00E7' '\u00E8' '\u00E9' '\u00EA' '\u00EB' '\u00EC' '\u00ED' '\u00EE'
 '\u00EF' '\u00F0' '\u00F1' '\u00F2' '\u00F3' '\u00F4' '\u00F5' '\u00F6'
 '\u00F8' '\u00F9' '\u00FA' '\u00FB' '\u00FC' '\u00FD' '\u00FE' '\u00FF'
 

Many other Unicode characters are lowercase too.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.isLowerCase(int) method.
Returns: true if the character is lowercase; false otherwise.
Parameters:
- ch - the character to be tested.
See Also: Character.isLowerCase(char), Character.isTitleCase(char), Character.toLowerCase(char), Character.getType(char),

  Determines if the specified character (Unicode code point) is a lowercase character.

  Determines if the specified character (Unicode code point) is a lowercase character.

A character is lowercase if its general category type, provided by getType(codePoint), is LOWERCASE_LETTER.

The following are examples of lowercase characters:

 a b c d e f g h i j k l m n o p q r s t u v w x y z
 '\u00DF' '\u00E0' '\u00E1' '\u00E2' '\u00E3' '\u00E4' '\u00E5' '\u00E6' 
 '\u00E7' '\u00E8' '\u00E9' '\u00EA' '\u00EB' '\u00EC' '\u00ED' '\u00EE'
 '\u00EF' '\u00F0' '\u00F1' '\u00F2' '\u00F3' '\u00F4' '\u00F5' '\u00F6'
 '\u00F8' '\u00F9' '\u00FA' '\u00FB' '\u00FC' '\u00FD' '\u00FE' '\u00FF'
 

Many other Unicode characters are lowercase too.
Returns: true if the character is lowercase; false otherwise.
Parameters:
- codePoint - the character (Unicode code point) to be tested.
Since: 1.5
See Also: Character.isLowerCase(int), Character.isTitleCase(int), Character.toLowerCase(int), Character.getType(int),

  Determines if the given char value is a low-surrogate code unit (also known as trailing-surrogate code unit).

  Determines if the given char value is a low-surrogate code unit (also known as trailing-surrogate code unit). Such values do not represent characters by themselves, but are used in the representation of supplementary characters in the UTF-16 encoding.

This method returns true if and only if

ch >= '\uDC00' && ch <= '\uDFFF'
 

is true.
Returns: true if the char value is between '\uDC00' and '\uDFFF' inclusive; false otherwise.
Parameters:
- ch - the char value to be tested.
Since: 1.5
See Also: Character.isHighSurrogate(char),

  Determines whether the character is mirrored according to the Unicode specification.

  Determines whether the character is mirrored according to the Unicode specification. Mirrored characters should have their glyphs horizontally mirrored when displayed in text that is right-to-left. For example, '\u0028' LEFT PARENTHESIS is semantically defined to be an opening parenthesis. This will appear as a "(" in text that is left-to-right but as a ")" in text that is right-to-left.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.isMirrored(int) method.
Returns: true if the char is mirrored, false if the char is not mirrored or is not defined.
Parameters:
- ch - char for which the mirrored property is requested
Since: 1.4

  Determines whether the specified character (Unicode code point) is mirrored according to the Unicode specification.

  Determines whether the specified character (Unicode code point)
is mirrored according to the Unicode specification. Mirrored
characters should have their glyphs horizontally mirrored when
displayed in text that is right-to-left. For example,
'\u0028' LEFT PARENTHESIS is semantically
defined to be an opening parenthesis. This will appear
as a "(" in text that is left-to-right but as a ")" in text
that is right-to-left.
Returns: true if the character is mirrored, false if the character is not mirrored or is not defined.
Parameters:
- codePoint - the character (Unicode code point) to be tested.
Since: 1.5

  Determines if the specified character is ISO-LATIN-1 white space.

  Determines if the specified character is ISO-LATIN-1 white space.
This method returns true for the following five
characters only:

'\t'	'\u0009'	HORIZONTAL TABULATION
'\n'	'\u000A'	NEW LINE
'\f'	'\u000C'	FORM FEED
'\r'	'\u000D'	CARRIAGE RETURN
' '	'\u0020'	SPACE

Returns: true if the character is ISO-LATIN-1 white space; false otherwise.
Parameters:
- ch - the character to be tested.
See Also: Character.isSpaceChar(char), Character.isWhitespace(char),

  Determines if the specified character is a Unicode space character.

  Determines if the specified character is a Unicode space character. A character is considered to be a space character if and only if it is specified to be a space character by the Unicode standard. This method returns true if the character's general category type is any of the following:

• SPACE_SEPARATOR
• LINE_SEPARATOR
• PARAGRAPH_SEPARATOR

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.isSpaceChar(int) method.
Returns: true if the character is a space character; false otherwise.
Parameters:
- ch - the character to be tested.
Since: 1.1
See Also: Character.isWhitespace(char),

  Determines if the specified character (Unicode code point) is a Unicode space character.

  Determines if the specified character (Unicode code point) is a
Unicode space character. A character is considered to be a
space character if and only if it is specified to be a space
character by the Unicode standard. This method returns true if
the character's general category type is any of the following:

• Character.SPACE_SEPARATOR
  
• Character.LINE_SEPARATOR
  
• Character.PARAGRAPH_SEPARATOR
  

Returns: true if the character is a space character; false otherwise.
Parameters:
- codePoint - the character (Unicode code point) to be tested.
Since: 1.5
See Also: Character.isWhitespace(int),

  Determines whether the specified character (Unicode code point) is in the supplementary character range.

  Determines whether the specified character (Unicode code point)
is in the supplementary character range. The method call is
equivalent to the expression:

 codePoint >= 0x10000 && codePoint <= 0x10FFFF
 

Returns: true if the specified character is in the Unicode supplementary character range; false otherwise.
Parameters:
- codePoint - the character (Unicode code point) to be tested
Since: 1.5

  Determines whether the specified pair of char values is a valid surrogate pair.

  Determines whether the specified pair of char
values is a valid surrogate pair. This method is equivalent to
the expression:

 isHighSurrogate(high) && isLowSurrogate(low)
 

Returns: true if the specified high and low-surrogate code values represent a valid surrogate pair; false otherwise.
Parameters:
- high - the high-surrogate code value to be tested
- low - the low-surrogate code value to be tested
Since: 1.5

  Determines if the specified character is a titlecase character.

  Determines if the specified character is a titlecase character.

A character is a titlecase character if its general category type, provided by Character.getType(ch), is TITLECASE_LETTER.

Some characters look like pairs of Latin letters. For example, there is an uppercase letter that looks like "LJ" and has a corresponding lowercase letter that looks like "lj". A third form, which looks like "Lj", is the appropriate form to use when rendering a word in lowercase with initial capitals, as for a book title.

These are some of the Unicode characters for which this method returns true:

• LATIN CAPITAL LETTER D WITH SMALL LETTER Z WITH CARON
• LATIN CAPITAL LETTER L WITH SMALL LETTER J
• LATIN CAPITAL LETTER N WITH SMALL LETTER J
• LATIN CAPITAL LETTER D WITH SMALL LETTER Z

Many other Unicode characters are titlecase too.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.isTitleCase(int) method.
Returns: true if the character is titlecase; false otherwise.
Parameters:
- ch - the character to be tested.
Since: 1.0.2
See Also: Character.isLowerCase(char), Character.isUpperCase(char), Character.toTitleCase(char), Character.getType(char),

  Determines if the specified character (Unicode code point) is a titlecase character.

  Determines if the specified character (Unicode code point) is a titlecase character.

A character is a titlecase character if its general category type, provided by getType(codePoint), is TITLECASE_LETTER.

Some characters look like pairs of Latin letters. For example, there is an uppercase letter that looks like "LJ" and has a corresponding lowercase letter that looks like "lj". A third form, which looks like "Lj", is the appropriate form to use when rendering a word in lowercase with initial capitals, as for a book title.

These are some of the Unicode characters for which this method returns true:

• LATIN CAPITAL LETTER D WITH SMALL LETTER Z WITH CARON
• LATIN CAPITAL LETTER L WITH SMALL LETTER J
• LATIN CAPITAL LETTER N WITH SMALL LETTER J
• LATIN CAPITAL LETTER D WITH SMALL LETTER Z

Many other Unicode characters are titlecase too.

Returns: true if the character is titlecase; false otherwise.
Parameters:
- codePoint - the character (Unicode code point) to be tested.
Since: 1.5
See Also: Character.isLowerCase(int), Character.isUpperCase(int), Character.toTitleCase(int), Character.getType(int),

  Determines if the specified character may be part of a Unicode identifier as other than the first character.

  Determines if the specified character may be part of a Unicode identifier as other than the first character.

A character may be part of a Unicode identifier if and only if one of the following statements is true:

• it is a letter
• it is a connecting punctuation character (such as '_')
• it is a digit
• it is a numeric letter (such as a Roman numeral character)
• it is a combining mark
• it is a non-spacing mark
• isIdentifierIgnorable returns true for this character.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.isUnicodeIdentifierPart(int) method.
Returns: true if the character may be part of a Unicode identifier; false otherwise.
Parameters:
- ch - the character to be tested.
Since: 1.1
See Also: Character.isIdentifierIgnorable(char), Character.isJavaIdentifierPart(char), Character.isLetterOrDigit(char), Character.isUnicodeIdentifierStart(char),

  Determines if the specified character (Unicode code point) may be part of a Unicode identifier as other than the first character.

  Determines if the specified character (Unicode code point) may be part of a Unicode identifier as other than the first character.

A character may be part of a Unicode identifier if and only if one of the following statements is true:

• it is a letter
• it is a connecting punctuation character (such as '_')
• it is a digit
• it is a numeric letter (such as a Roman numeral character)
• it is a combining mark
• it is a non-spacing mark
• isIdentifierIgnorable returns true for this character.

Returns: true if the character may be part of a Unicode identifier; false otherwise.
Parameters:
- codePoint - the character (Unicode code point) to be tested.
Since: 1.5
See Also: Character.isIdentifierIgnorable(int), Character.isJavaIdentifierPart(int), Character.isLetterOrDigit(int), Character.isUnicodeIdentifierStart(int),

  Determines if the specified character is permissible as the first character in a Unicode identifier.

  Determines if the specified character is permissible as the first character in a Unicode identifier.

A character may start a Unicode identifier if and only if one of the following conditions is true:

• isLetter(ch) returns true
• getType(ch) returns LETTER_NUMBER.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.isUnicodeIdentifierStart(int) method.
Returns: true if the character may start a Unicode identifier; false otherwise.
Parameters:
- ch - the character to be tested.
Since: 1.1
See Also: Character.isJavaIdentifierStart(char), Character.isLetter(char), Character.isUnicodeIdentifierPart(char),

  Determines if the specified character (Unicode code point) is permissible as the first character in a Unicode identifier.

  Determines if the specified character (Unicode code point) is permissible as the first character in a Unicode identifier.

A character may start a Unicode identifier if and only if one of the following conditions is true:

• isLetter(codePoint) returns true
• getType(codePoint) returns LETTER_NUMBER.

Returns: true if the character may start a Unicode identifier; false otherwise.
Parameters:
- codePoint - the character (Unicode code point) to be tested.
Since: 1.5
See Also: Character.isJavaIdentifierStart(int), Character.isLetter(int), Character.isUnicodeIdentifierPart(int),

  Determines if the specified character is an uppercase character.

  Determines if the specified character is an uppercase character.

A character is uppercase if its general category type, provided by Character.getType(ch), is UPPERCASE_LETTER.

The following are examples of uppercase characters:

 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
 '\u00C0' '\u00C1' '\u00C2' '\u00C3' '\u00C4' '\u00C5' '\u00C6' '\u00C7'
 '\u00C8' '\u00C9' '\u00CA' '\u00CB' '\u00CC' '\u00CD' '\u00CE' '\u00CF'
 '\u00D0' '\u00D1' '\u00D2' '\u00D3' '\u00D4' '\u00D5' '\u00D6' '\u00D8'
 '\u00D9' '\u00DA' '\u00DB' '\u00DC' '\u00DD' '\u00DE'
 

Many other Unicode characters are uppercase too.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.isUpperCase(int) method.
Returns: true if the character is uppercase; false otherwise.
Parameters:
- ch - the character to be tested.
Since: 1.0
See Also: Character.isLowerCase(char), Character.isTitleCase(char), Character.toUpperCase(char), Character.getType(char),

  Determines if the specified character (Unicode code point) is an uppercase character.

  Determines if the specified character (Unicode code point) is an uppercase character.

A character is uppercase if its general category type, provided by getType(codePoint), is UPPERCASE_LETTER.

The following are examples of uppercase characters:

 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
 '\u00C0' '\u00C1' '\u00C2' '\u00C3' '\u00C4' '\u00C5' '\u00C6' '\u00C7'
 '\u00C8' '\u00C9' '\u00CA' '\u00CB' '\u00CC' '\u00CD' '\u00CE' '\u00CF'
 '\u00D0' '\u00D1' '\u00D2' '\u00D3' '\u00D4' '\u00D5' '\u00D6' '\u00D8'
 '\u00D9' '\u00DA' '\u00DB' '\u00DC' '\u00DD' '\u00DE'
 

Many other Unicode characters are uppercase too.

Returns: true if the character is uppercase; false otherwise.
Parameters:
- codePoint - the character (Unicode code point) to be tested.
Since: 1.5
See Also: Character.isLowerCase(int), Character.isTitleCase(int), Character.toUpperCase(int), Character.getType(int),

  Determines whether the specified code point is a valid Unicode code point value in the range of 0x0000 to 0x10FFFF inclusive.

  Determines whether the specified code point is a valid Unicode
code point value in the range of 0x0000 to
0x10FFFF inclusive. This method is equivalent to
the expression:

 codePoint >= 0x0000 && codePoint <= 0x10FFFF
 

Returns: true if the specified code point value is a valid code point value; false otherwise.
Parameters:
- codePoint - the Unicode code point to be tested
Since: 1.5

  Determines if the specified character is white space according to Java.

  Determines if the specified character is white space according to Java. A character is a Java whitespace character if and only if it satisfies one of the following criteria:

• It is a Unicode space character (SPACE_SEPARATOR, LINE_SEPARATOR, or PARAGRAPH_SEPARATOR) but is not also a non-breaking space ('\u00A0', '\u2007', '\u202F').
• It is '\u0009', HORIZONTAL TABULATION.
• It is '\u000A', LINE FEED.
• It is '\u000B', VERTICAL TABULATION.
• It is '\u000C', FORM FEED.
• It is '\u000D', CARRIAGE RETURN.
• It is '\u001C', FILE SEPARATOR.
• It is '\u001D', GROUP SEPARATOR.
• It is '\u001E', RECORD SEPARATOR.
• It is '\u001F', UNIT SEPARATOR.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.isWhitespace(int) method.
Returns: true if the character is a Java whitespace character; false otherwise.
Parameters:
- ch - the character to be tested.
Since: 1.1
See Also: Character.isSpaceChar(char),

  Determines if the specified character (Unicode code point) is white space according to Java.

  Determines if the specified character (Unicode code point) is white space according to Java. A character is a Java whitespace character if and only if it satisfies one of the following criteria:

• It is a Unicode space character (Character.SPACE_SEPARATOR, Character.LINE_SEPARATOR, or Character.PARAGRAPH_SEPARATOR) but is not also a non-breaking space ('\u00A0', '\u2007', '\u202F').
• It is '\u0009', HORIZONTAL TABULATION.
• It is '\u000A', LINE FEED.
• It is '\u000B', VERTICAL TABULATION.
• It is '\u000C', FORM FEED.
• It is '\u000D', CARRIAGE RETURN.
• It is '\u001C', FILE SEPARATOR.
• It is '\u001D', GROUP SEPARATOR.
• It is '\u001E', RECORD SEPARATOR.
• It is '\u001F', UNIT SEPARATOR.

Returns: true if the character is a Java whitespace character; false otherwise.
Parameters:
- codePoint - the character (Unicode code point) to be tested.
Since: 1.5
See Also: Character.isSpaceChar(int),

  Returns the index within the given char subarray that is offset from the given index by codePointOffset code points.

  Returns the index within the given char subarray
that is offset from the given index by
codePointOffset code points. The
start and count arguments specify a
subarray of the char array. Unpaired surrogates
within the text range given by index and
codePointOffset count as one code point each.
Returns: the index within the subarray
Parameters:
- a - the char array
- start - the index of the first char of the subarray
- count - the length of the subarray in chars
- index - the index to be offset
- codePointOffset - the offset in code points
Throws:
- NullPointerException - if a is null.
- IndexOutOfBoundsException - if start or count is negative, or if start + count is larger than the length of the given array, or if index is less than start or larger then start + count, or if codePointOffset is positive and the text range starting with index and ending with start + count - 1 has fewer than codePointOffset code points, or if codePointOffset is negative and the text range starting with start and ending with index - 1 has fewer than the absolute value of codePointOffset code points.
Since: 1.5

  Returns the index within the given char sequence that is offset from the given index by codePointOffset code points.

  Returns the index within the given char sequence that is offset
from the given index by codePointOffset
code points. Unpaired surrogates within the text range given by
index and codePointOffset count as
one code point each.
Returns: the index within the char sequence
Parameters:
- seq - the char sequence
- index - the index to be offset
- codePointOffset - the offset in code points
Throws:
- NullPointerException - if seq is null.
- IndexOutOfBoundsException - if index is negative or larger then the length of the char sequence, or if codePointOffset is positive and the subsequence starting with index has fewer than codePointOffset code points, or if codePointOffset is negative and the subsequence before index has fewer than the absolute value of codePointOffset code points.
Since: 1.5

  Returns the value obtained by reversing the order of the bytes in the specified char value.

  Returns the value obtained by reversing the order of the bytes in the
specified char value.
Returns: the value obtained by reversing (or, equivalently, swapping) the bytes in the specified char value.
Since: 1.5

  Converts the specified character (Unicode code point) to its UTF-16 representation stored in a char array.

  Converts the specified character (Unicode code point) to its
UTF-16 representation stored in a char array. If
the specified code point is a BMP (Basic Multilingual Plane or
Plane 0) value, the resulting char array has
the same value as codePoint. If the specified code
point is a supplementary code point, the resulting
char array has the corresponding surrogate pair.
Returns: a char array having codePoint's UTF-16 representation.
Parameters:
- codePoint - a Unicode code point
Throws:
- IllegalArgumentException - if the specified codePoint is not a valid Unicode code point.
Since: 1.5

  Converts the specified character (Unicode code point) to its UTF-16 representation.

  Converts the specified character (Unicode code point) to its
UTF-16 representation. If the specified code point is a BMP
(Basic Multilingual Plane or Plane 0) value, the same value is
stored in dst[dstIndex], and 1 is returned. If the
specified code point is a supplementary character, its
surrogate values are stored in dst[dstIndex]
(high-surrogate) and dst[dstIndex+1]
(low-surrogate), and 2 is returned.
Returns: 1 if the code point is a BMP code point, 2 if the code point is a supplementary code point.
Parameters:
- codePoint - the character (Unicode code point) to be converted.
- dst - an array of char in which the codePoint's UTF-16 value is stored.
- dstIndex - the start index into the dst array where the converted value is stored.
Throws:
- IllegalArgumentException - if the specified codePoint is not a valid Unicode code point.
- NullPointerException - if the specified dst is null.
- IndexOutOfBoundsException - if dstIndex is negative or not less than dst.length, or if dst at dstIndex doesn't have enough array element(s) to store the resulting char value(s). (If dstIndex is equal to dst.length-1 and the specified codePoint is a supplementary character, the high-surrogate value is not stored in dst[dstIndex].)
Since: 1.5

  Converts the specified surrogate pair to its supplementary code point value.

  Converts the specified surrogate pair to its supplementary code
point value. This method does not validate the specified
surrogate pair. The caller must validate it using isSurrogatePair if necessary.
Returns: the supplementary code point composed from the specified surrogate pair.
Parameters:
- high - the high-surrogate code unit
- low - the low-surrogate code unit
Since: 1.5

  Converts the character argument to lowercase using case mapping information from the UnicodeData file.

  Converts the character argument to lowercase using case mapping information from the UnicodeData file.

Note that Character.isLowerCase(Character.toLowerCase(ch)) does not always return true for some ranges of characters, particularly those that are symbols or ideographs.

In general, String.toLowerCase() should be used to map characters to lowercase. String case mapping methods have several benefits over Character case mapping methods. String case mapping methods can perform locale-sensitive mappings, context-sensitive mappings, and 1:M character mappings, whereas the Character case mapping methods cannot.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.toLowerCase(int) method.
Returns: the lowercase equivalent of the character, if any; otherwise, the character itself.
Parameters:
- ch - the character to be converted.
See Also: Character.isLowerCase(char), String.toLowerCase(),

  Converts the character (Unicode code point) argument to lowercase using case mapping information from the UnicodeData file.

  Converts the character (Unicode code point) argument to lowercase using case mapping information from the UnicodeData file.

Note that Character.isLowerCase(Character.toLowerCase(codePoint)) does not always return true for some ranges of characters, particularly those that are symbols or ideographs.

In general, String.toLowerCase() should be used to map characters to lowercase. String case mapping methods have several benefits over Character case mapping methods. String case mapping methods can perform locale-sensitive mappings, context-sensitive mappings, and 1:M character mappings, whereas the Character case mapping methods cannot.
Returns: the lowercase equivalent of the character (Unicode code point), if any; otherwise, the character itself.
Parameters:
- codePoint - the character (Unicode code point) to be converted.
Since: 1.5
See Also: Character.isLowerCase(int), String.toLowerCase(),

  Returns a String object representing this Character's value.

  Returns a String object representing this
Character's value. The result is a string of
length 1 whose sole component is the primitive
char value represented by this
Character object.
Returns: a string representation of this object.

  Returns a String object representing the specified char.

  Returns a String object representing the
specified char. The result is a string of length
1 consisting solely of the specified char.
Returns: the string representation of the specified char
Parameters:
- c - the char to be converted
Since: 1.4

  Converts the character argument to titlecase using case mapping information from the UnicodeData file.

  Converts the character argument to titlecase using case mapping information from the UnicodeData file. If a character has no explicit titlecase mapping and is not itself a titlecase char according to UnicodeData, then the uppercase mapping is returned as an equivalent titlecase mapping. If the char argument is already a titlecase char, the same char value will be returned.

Note that Character.isTitleCase(Character.toTitleCase(ch)) does not always return true for some ranges of characters.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.toTitleCase(int) method.
Returns: the titlecase equivalent of the character, if any; otherwise, the character itself.
Parameters:
- ch - the character to be converted.
Since: 1.0.2
See Also: Character.isTitleCase(char), Character.toLowerCase(char), Character.toUpperCase(char),

  Converts the character (Unicode code point) argument to titlecase using case mapping information from the UnicodeData file.

  Converts the character (Unicode code point) argument to titlecase using case mapping information from the UnicodeData file. If a character has no explicit titlecase mapping and is not itself a titlecase char according to UnicodeData, then the uppercase mapping is returned as an equivalent titlecase mapping. If the character argument is already a titlecase character, the same character value will be returned.

Note that Character.isTitleCase(Character.toTitleCase(codePoint)) does not always return true for some ranges of characters.
Returns: the titlecase equivalent of the character, if any; otherwise, the character itself.
Parameters:
- codePoint - the character (Unicode code point) to be converted.
Since: 1.5
See Also: Character.isTitleCase(int), Character.toLowerCase(int), Character.toUpperCase(int),

  Converts the character argument to uppercase using case mapping information from the UnicodeData file.

  Converts the character argument to uppercase using case mapping information from the UnicodeData file.

Note that Character.isUpperCase(Character.toUpperCase(ch)) does not always return true for some ranges of characters, particularly those that are symbols or ideographs.

In general, String.toUpperCase() should be used to map characters to uppercase. String case mapping methods have several benefits over Character case mapping methods. String case mapping methods can perform locale-sensitive mappings, context-sensitive mappings, and 1:M character mappings, whereas the Character case mapping methods cannot.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.toUpperCase(int) method.
Returns: the uppercase equivalent of the character, if any; otherwise, the character itself.
Parameters:
- ch - the character to be converted.
See Also: Character.isUpperCase(char), String.toUpperCase(),

  Converts the character (Unicode code point) argument to uppercase using case mapping information from the UnicodeData file.

  Converts the character (Unicode code point) argument to uppercase using case mapping information from the UnicodeData file.

Note that Character.isUpperCase(Character.toUpperCase(codePoint)) does not always return true for some ranges of characters, particularly those that are symbols or ideographs.

In general, String.toUpperCase() should be used to map characters to uppercase. String case mapping methods have several benefits over Character case mapping methods. String case mapping methods can perform locale-sensitive mappings, context-sensitive mappings, and 1:M character mappings, whereas the Character case mapping methods cannot.
Returns: the uppercase equivalent of the character, if any; otherwise, the character itself.
Parameters:
- codePoint - the character (Unicode code point) to be converted.
Since: 1.5
See Also: Character.isUpperCase(int), String.toUpperCase(),

  Converts the character (Unicode code point) argument to uppercase using case mapping information from the SpecialCasing file in the Unicode specification.

  Converts the character (Unicode code point) argument to uppercase using case
mapping information from the SpecialCasing file in the Unicode
specification. If a character has no explicit uppercase
mapping, then the char itself is returned in the
char[].
Returns: a char[] with the uppercased character.
Parameters:
- codePoint - the character (Unicode code point) to be converted.
Since: 1.4

  Converts the character (Unicode code point) argument to uppercase using information from the UnicodeData file.

  Converts the character (Unicode code point) argument to uppercase using information from the UnicodeData file.

Returns: either the uppercase equivalent of the character, if any, or an error flag (Character.ERROR) that indicates that a 1:M char mapping exists.
Parameters:
- codePoint - the character (Unicode code point) to be converted.
Since: 1.4
See Also: Character.isLowerCase(char), Character.isUpperCase(char), Character.toLowerCase(char), Character.toTitleCase(char),

  Returns a Character instance representing the specified char value.

  Returns a Character instance representing the specified
char value.
If a new Character instance is not required, this method
should generally be used in preference to the constructor
Character.Character(char), as this method is likely to yield
significantly better space and time performance by caching
frequently requested values.
Returns: a Character instance representing c.
Parameters:
- c - a char value.
Since: 1.5