Unicode Character 'NEGATIVE ACKNOWLEDGE' (U+0015)

Unicode Character 'NEGATIVE ACKNOWLEDGE' (U+0015)

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Unicode Data
Name <control>
Block Basic Latin
Category Other, Control [Cc]
Combine 0
BIDI Boundary Neutral [BN]
Mirror N
Old name NEGATIVE ACKNOWLEDGE
Index entries ACKNOWLEDGE, NEGATIVE
Version Unicode 1.1.0 (June, 1993)
Encodings
HTML Entity (decimal) &#21;
HTML Entity (hex) &#x15;
How to type in Microsoft Windows Alt +0015
Alt 021
Alt 21
UTF-8 (hex) 0x15 (15)
UTF-8 (binary) 00010101
UTF-16 (hex) 0x0015 (0015)
UTF-16 (decimal) 21
UTF-32 (hex) 0x00000015 (0015)
UTF-32 (decimal) 21
C/C++/Java source code "\u0015"
Python source code u"\u0015"
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Java Data
string.toUpperCase() 
string.toLowerCase() 
Character.UnicodeBlock BASIC_LATIN
Character.charCount() 1
Character.getDirectionality() DIRECTIONALITY_BOUNDARY_NEUTRAL [9]
Character.getNumericValue() -1
Character.getType() 15
Character.isDefined() Yes
Character.isDigit() No
Character.isIdentifierIgnorable() Yes
Character.isISOControl() Yes
Character.isJavaIdentifierPart() Yes
Character.isJavaIdentifierStart() No
Character.isLetter() No
Character.isLetterOrDigit() No
Character.isLowerCase() No
Character.isMirrored() No
Character.isSpaceChar() No
Character.isSupplementaryCodePoint() No
Character.isTitleCase() No
Character.isUnicodeIdentifierPart() Yes
Character.isUnicodeIdentifierStart() No
Character.isUpperCase() No
Character.isValidCodePoint() Yes
Character.isWhitespace() No