| string.toUpperCase() |
优
|
| string.toLowerCase() |
优
|
| Character.UnicodeBlock |
CJK_UNIFIED_IDEOGRAPHS
|
| Character.charCount() |
1 |
| Character.getDirectionality() |
DIRECTIONALITY_LEFT_TO_RIGHT [0] |
| Character.getNumericValue() |
-1 |
| Character.getType() |
5 |
| Character.isDefined() |
Yes |
| Character.isDigit() |
No |
| Character.isIdentifierIgnorable() |
No |
| Character.isISOControl() |
No |
| Character.isJavaIdentifierPart() |
Yes |
| Character.isJavaIdentifierStart() |
Yes |
| Character.isLetter() |
Yes |
| Character.isLetterOrDigit() |
Yes |
| Character.isLowerCase() |
No |
| Character.isMirrored() |
No |
| Character.isSpaceChar() |
No |
| Character.isSupplementaryCodePoint() |
No |
| Character.isTitleCase() |
No |
| Character.isUnicodeIdentifierPart() |
Yes |
| Character.isUnicodeIdentifierStart() |
Yes |
| Character.isUpperCase() |
No |
| Character.isValidCodePoint() |
Yes |
| Character.isWhitespace() |
No |
