Character.isDigit

Class Overview | Class Members | This Package | All Packages

Syntax

public static boolean isDigit( char ch )

Parameters

ch: the character to be tested.

Returns

true if the character is a digit; false otherwise.

Description

Determines if the specified character is a digit. A character is considered to be a digit if it is not in the range '\u2000' <= ch <= '\u2FFF' and its Unicode name contains the word "DIGIT". For a more complete specification that encompasses all Unicode characters that are defined as digits, see Gosling, Joy, and Steele, The Java Language Specification.

These are the ranges of Unicode characters that are considered digits:

0x0030 through 0x0039 ISO-LATIN-1 digits ('0' through '9')

0x0660 through 0x0669 Arabic-Indic digits

0x06F0 through 0x06F9 Extended Arabic-Indic digits

0x0966 through 0x096F Devanagari digits

0x09E6 through 0x09EF Bengali digits

0x0A66 through 0x0A6F Gurmukhi digits

0x0AE6 through 0x0AEF Gujarati digits

0x0B66 through 0x0B6F Oriya digits

0x0BE7 through 0x0BEF Tamil digits

0x0C66 through 0x0C6F Telugu digits

0x0CE6 through 0x0CEF Kannada digits

0x0D66 through 0x0D6F Malayalam digits

0x0E50 through 0x0E59 Thai digits

0x0ED0 through 0x0ED9 Lao digits

0x0F20 through 0x0F29 Tibetan digits

0xFF10 through 0xFF19 Fullwidth digits

0x0030 through 0x0039	ISO-LATIN-1 digits ('0' through '9')
0x0660 through 0x0669	Arabic-Indic digits
0x06F0 through 0x06F9	Extended Arabic-Indic digits
0x0966 through 0x096F	Devanagari digits
0x09E6 through 0x09EF	Bengali digits
0x0A66 through 0x0A6F	Gurmukhi digits
0x0AE6 through 0x0AEF	Gujarati digits
0x0B66 through 0x0B6F	Oriya digits
0x0BE7 through 0x0BEF	Tamil digits
0x0C66 through 0x0C6F	Telugu digits
0x0CE6 through 0x0CEF	Kannada digits
0x0D66 through 0x0D6F	Malayalam digits
0x0E50 through 0x0E59	Thai digits
0x0ED0 through 0x0ED9	Lao digits
0x0F20 through 0x0F29	Tibetan digits
0xFF10 through 0xFF19	Fullwidth digits