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Character

Character

Method Summary

Methods
Modifier and Type	Method and Description
`static int`	`charCount(int codePoint)` Determines the number of `char` values needed to represent the specified character (Unicode code point).
`char`	`charValue()` Returns the value of this `Character` object.
`static int`	`codePointAt(char[] a, int index)` Returns the code point at the given index of the `char` array.
`static int`	`codePointAt(char[] a, int index, int limit)` Returns the code point at the given index of the `char` array, where only array elements with `index` less than `limit` can be used.
`static int`	`codePointAt(CharSequence seq, int index)` Returns the code point at the given index of the `CharSequence`.
`static int`	`codePointBefore(char[] a, int index)` Returns the code point preceding the given index of the `char` array.
`static int`	`codePointBefore(char[] a, int index, int start)` 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.
`static int`	`codePointBefore(CharSequence seq, int index)` Returns the code point preceding the given index of the `CharSequence`.
`static int`	`codePointCount(char[] a, int offset, int count)` Returns the number of Unicode code points in a subarray of the `char` array argument.
`static int`	`codePointCount(CharSequence seq, int beginIndex, int endIndex)` Returns the number of Unicode code points in the text range of the specified char sequence.
`static int`	`compare(char x, char y)` Compares two `char` values numerically.
`int`	`compareTo(Character anotherCharacter)` Compares two `Character` objects numerically.
`static int`	`digit(char ch, int radix)` Returns the numeric value of the character `ch` in the specified radix.
`static int`	`digit(int codePoint, int radix)` Returns the numeric value of the specified character (Unicode code point) in the specified radix.
`boolean`	`equals(Object obj)` Compares this object against the specified object.
`static char`	`forDigit(int digit, int radix)` Determines the character representation for a specific digit in the specified radix.
`static byte`	`getDirectionality(char ch)` Returns the Unicode directionality property for the given character.
`static byte`	`getDirectionality(int codePoint)` Returns the Unicode directionality property for the given character (Unicode code point).
`static String`	`getName(int codePoint)` Returns the Unicode name of the specified character `codePoint`, or null if the code point is `unassigned`.
`static int`	`getNumericValue(char ch)` Returns the `int` value that the specified Unicode character represents.
`static int`	`getNumericValue(int codePoint)` Returns the `int` value that the specified character (Unicode code point) represents.
`static int`	`getType(char ch)` Returns a value indicating a character's general category.
`static int`	`getType(int codePoint)` Returns a value indicating a character's general category.
`int`	`hashCode()` Returns a hash code for this `Character`; equal to the result of invoking `charValue()`.
`static char`	`highSurrogate(int codePoint)` Returns the leading surrogate (a high surrogate code unit) of the surrogate pair representing the specified supplementary character (Unicode code point) in the UTF-16 encoding.
`static boolean`	`isAlphabetic(int codePoint)` Determines if the specified character (Unicode code point) is an alphabet.
`static boolean`	`isBmpCodePoint(int codePoint)` Determines whether the specified character (Unicode code point) is in the Basic Multilingual Plane (BMP).
`static boolean`	`isDefined(char ch)` Determines if a character is defined in Unicode.
`static boolean`	`isDefined(int codePoint)` Determines if a character (Unicode code point) is defined in Unicode.
`static boolean`	`isDigit(char ch)` Determines if the specified character is a digit.
`static boolean`	`isDigit(int codePoint)` Determines if the specified character (Unicode code point) is a digit.
`static boolean`	`isHighSurrogate(char ch)` Determines if the given `char` value is a Unicode high-surrogate code unit (also known as leading-surrogate code unit).
`static boolean`	`isIdentifierIgnorable(char ch)` Determines if the specified character should be regarded as an ignorable character in a Java identifier or a Unicode identifier.
`static boolean`	`isIdentifierIgnorable(int codePoint)` Determines if the specified character (Unicode code point) should be regarded as an ignorable character in a Java identifier or a Unicode identifier.
`static boolean`	`isIdeographic(int codePoint)` Determines if the specified character (Unicode code point) is a CJKV (Chinese, Japanese, Korean and Vietnamese) ideograph, as defined by the Unicode Standard.
`static boolean`	`isISOControl(char ch)` Determines if the specified character is an ISO control character.
`static boolean`	`isISOControl(int codePoint)` Determines if the referenced character (Unicode code point) is an ISO control character.
`static boolean`	`isJavaIdentifierPart(char ch)` Determines if the specified character may be part of a Java identifier as other than the first character.
`static boolean`	`isJavaIdentifierPart(int codePoint)` Determines if the character (Unicode code point) may be part of a Java identifier as other than the first character.
`static boolean`	`isJavaIdentifierStart(char ch)` Determines if the specified character is permissible as the first character in a Java identifier.
`static boolean`	`isJavaIdentifierStart(int codePoint)` Determines if the character (Unicode code point) is permissible as the first character in a Java identifier.
`static boolean`	`isJavaLetter(char ch)` Deprecated. Replaced by isJavaIdentifierStart(char).
`static boolean`	`isJavaLetterOrDigit(char ch)` Deprecated. Replaced by isJavaIdentifierPart(char).
`static boolean`	`isLetter(char ch)` Determines if the specified character is a letter.
`static boolean`	`isLetter(int codePoint)` Determines if the specified character (Unicode code point) is a letter.
`static boolean`	`isLetterOrDigit(char ch)` Determines if the specified character is a letter or digit.
`static boolean`	`isLetterOrDigit(int codePoint)` Determines if the specified character (Unicode code point) is a letter or digit.
`static boolean`	`isLowerCase(char ch)` Determines if the specified character is a lowercase character.
`static boolean`	`isLowerCase(int codePoint)` Determines if the specified character (Unicode code point) is a lowercase character.
`static boolean`	`isLowSurrogate(char ch)` Determines if the given `char` value is a Unicode low-surrogate code unit (also known as trailing-surrogate code unit).
`static boolean`	`isMirrored(char ch)` Determines whether the character is mirrored according to the Unicode specification.
`static boolean`	`isMirrored(int codePoint)` Determines whether the specified character (Unicode code point) is mirrored according to the Unicode specification.
`static boolean`	`isSpace(char ch)` Deprecated. Replaced by isWhitespace(char).
`static boolean`	`isSpaceChar(char ch)` Determines if the specified character is a Unicode space character.
`static boolean`	`isSpaceChar(int codePoint)` Determines if the specified character (Unicode code point) is a Unicode space character.
`static boolean`	`isSupplementaryCodePoint(int codePoint)` Determines whether the specified character (Unicode code point) is in the supplementary character range.
`static boolean`	`isSurrogate(char ch)` Determines if the given `char` value is a Unicode surrogate code unit.
`static boolean`	`isSurrogatePair(char high, char low)` Determines whether the specified pair of `char` values is a valid Unicode surrogate pair.
`static boolean`	`isTitleCase(char ch)` Determines if the specified character is a titlecase character.
`static boolean`	`isTitleCase(int codePoint)` Determines if the specified character (Unicode code point) is a titlecase character.
`static boolean`	`isUnicodeIdentifierPart(char ch)` Determines if the specified character may be part of a Unicode identifier as other than the first character.
`static boolean`	`isUnicodeIdentifierPart(int codePoint)` Determines if the specified character (Unicode code point) may be part of a Unicode identifier as other than the first character.
`static boolean`	`isUnicodeIdentifierStart(char ch)` Determines if the specified character is permissible as the first character in a Unicode identifier.
`static boolean`	`isUnicodeIdentifierStart(int codePoint)` Determines if the specified character (Unicode code point) is permissible as the first character in a Unicode identifier.
`static boolean`	`isUpperCase(char ch)` Determines if the specified character is an uppercase character.
`static boolean`	`isUpperCase(int codePoint)` Determines if the specified character (Unicode code point) is an uppercase character.
`static boolean`	`isValidCodePoint(int codePoint)` Determines whether the specified code point is a valid Unicode code point value.
`static boolean`	`isWhitespace(char ch)` Determines if the specified character is white space according to Java.
`static boolean`	`isWhitespace(int codePoint)` Determines if the specified character (Unicode code point) is white space according to Java.
`static char`	`lowSurrogate(int codePoint)` Returns the trailing surrogate (a low surrogate code unit) of the surrogate pair representing the specified supplementary character (Unicode code point) in the UTF-16 encoding.
`static int`	`offsetByCodePoints(char[] a, int start, int count, int index, int codePointOffset)` Returns the index within the given `char` subarray that is offset from the given `index` by `codePointOffset` code points.
`static int`	`offsetByCodePoints(CharSequence seq, int index, int codePointOffset)` Returns the index within the given char sequence that is offset from the given `index` by `codePointOffset` code points.
`static char`	`reverseBytes(char ch)` Returns the value obtained by reversing the order of the bytes in the specified `char` value.
`static char[]`	`toChars(int codePoint)` Converts the specified character (Unicode code point) to its UTF-16 representation stored in a `char` array.
`static int`	`toChars(int codePoint, char[] dst, int dstIndex)` Converts the specified character (Unicode code point) to its UTF-16 representation.
`static int`	`toCodePoint(char high, char low)` Converts the specified surrogate pair to its supplementary code point value.
`static char`	`toLowerCase(char ch)` Converts the character argument to lowercase using case mapping information from the UnicodeData file.
`static int`	`toLowerCase(int codePoint)` Converts the character (Unicode code point) argument to lowercase using case mapping information from the UnicodeData file.
`String`	`toString()` Returns a `String` object representing this `Character`'s value.
`static String`	`toString(char c)` Returns a `String` object representing the specified `char`.
`static char`	`toTitleCase(char ch)` Converts the character argument to titlecase using case mapping information from the UnicodeData file.
`static int`	`toTitleCase(int codePoint)` Converts the character (Unicode code point) argument to titlecase using case mapping information from the UnicodeData file.
`static char`	`toUpperCase(char ch)` Converts the character argument to uppercase using case mapping information from the UnicodeData file.
`static int`	`toUpperCase(int codePoint)` Converts the character (Unicode code point) argument to uppercase using case mapping information from the UnicodeData file.
`static Character`	`valueOf(char c)` Returns a `Character` instance representing the specified `char` value.

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