20.5
java.lang.Character
THE PACKAGE JAVA.LANG
20.5.11
public static boolean isLowerCase(char ch)
The result is
true
 if and only if the character argument is a lowercase character.
A character is considered to be lowercase if and only if all of the following are
true:
The character
ch
 is not in the range
\u2000
 through
\u2FFF
.
The Unicode attribute table does not specify a mapping to lowercase for this
character (the purpose of this requirement is to exclude titlecase characters).
At least one of the following is true:
N
The Unicode attribute table specifies a mapping to uppercase for this char 
acter.
N
The name for the character in the Unicode attribute table contains the words
SMALL LETTER
 or the words
SMALL LIGATURE
.
It follows, then, that for Unicode 1.1.5 as corrected above, the lowercase Uni 
code characters are exactly those with codes in the following list, which contains
both single codes and inclusive ranges:
 0061
007A
,
00DF
00F6
,
00F8
00FF
,
0101
0137
 (odds only),
0138
0148
 (evens only),
0149
0177
 (odds only),
017A
017E
 (evens only),
017F
0180
,
0183
,
0185
,
0188
,
018C
018D
,
0192
,
0195
,
0199
019B
,
019E
,
01A1
01A5
 (odds only),
01A8
,
01AB
,
01AD
,
01B0
,
01B4
,
01B6
,
01B9
01BA
,
01BD
,
01C6
,
01C9
,
01CC
01DC
 (evens only),
01DD
01EF
(odds only),
01F0
,
01F3
,
01F5
,
01FB
0217
 (odds only),
0250
0261
,
0263
0269
,
026B
0273
,
0275
,
0277
027F
,
0282
028E
,
0290
0293
,
029A
,
029D
029E
,
02A0
,
02A3
02A8
,
0390
,
03AC
03CE
,
03D0
03D1
,
03D5
03D6
,
03E3
03EF
(odds only),
03F0
03F1
,
0430
044F
,
0451
045C
,
045E
045F
,
0461
0481
(odds only),
0491
04BF
(odds
only),
04C2
,
04C4
,
04C8
,
04CC
,
04D1
04EB
(odds only),
04EF
04F5
(odds only),
04F9
,
0561
0587
,
1E01
1E95
 (odds only),
1E96
1E9A
,
1EA1
1EF9
 (odds only),
1F00
1F07
,
1F10
1F15
,
1F20
1F27
,
1F30
1F37
,
1F40
1F45
,
1F50
1F57
,
1F60
1F67
,
1F70
1F7D
,
1F80
1F87
,
1F90
1F97
,
1FA0
1FA7
,
1FB0
1FB4
,
1FB6
1FB7
,
1FC2
1FC4
,
1FC6
1FC7
,
1FD0
1FD3
,
1FD6
1FD7
,
1FE0
1FE7
,
1FF2
1FF4
,
1FF6
1FF7
,
FB00
FB06
,
FB13
FB17
,
FF41
FF5A
.
Of the first 128 Unicode characters, exactly 26 are considered to be lower 
case:
abcdefghijklmnopqrstuvwxyz
[This specification for the method
isLowerCase
 is scheduled for introduction
in Java version 1.1, either as defined here, or updated for Unicode 2.0; see  20.5.
In previous versions of Java, this method returns
false
 for all arguments larger
than
\u00FF
.]
476






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