Character.isIdentifierIgnorable

Character.isIdentifierIgnorable

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Syntax
public static boolean isIdentifierIgnorable( char ch )
Parameters
ch
the character to be tested.
Returns
true if the character may be part of a Unicode identifier; false otherwise.
Description
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:

0x0000 through 0x0008,ISO control characters that
0x000E through 0x001B,are not whitespace
and 0x007F through 0x009F 
0x200C through 0x200Fjoin controls
0x200A through 0x200Ebidirectional controls
0x206A through 0x206Fformat controls
0xFEFFzero-width no-break space

See Also
isJavaIdentifierPart, isUnicodeIdentifierPart