U+EFFA

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U+EFFA is not a valid unicode character.
Encodings
HTML Entity (decimal) 
HTML Entity (hex) 
How to type in Microsoft Windows Alt +EFFA
UTF-8 (hex) 0xEE 0xBF 0xBA (eebfba)
UTF-8 (binary) 11101110:10111111:10111010
UTF-16 (hex) 0xEFFA (effa)
UTF-16 (decimal) 61,434
UTF-32 (hex) 0x0000EFFA (effa)
UTF-32 (decimal) 61,434
C/C++/Java source code "\uEFFA"
Python source code u"\uEFFA"
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Java Data
string.toUpperCase()
string.toLowerCase()
Character.UnicodeBlock PRIVATE_USE_AREA
Character.charCount() 1
Character.getDirectionality() DIRECTIONALITY_LEFT_TO_RIGHT [0]
Character.getNumericValue() -1
Character.getType() 18
Character.isDefined() Yes
Character.isDigit() No
Character.isIdentifierIgnorable() No
Character.isISOControl() No
Character.isJavaIdentifierPart() No
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() No
Character.isUnicodeIdentifierStart() No
Character.isUpperCase() No
Character.isValidCodePoint() Yes
Character.isWhitespace() No