| Methods Summary |
|---|
| public static int | digit(char ch, int radix)Returns the numeric value of the character ch
in the specified radix.
This is only supported for ISO Latin-1 characters.
int value = -1;
if (radix >= Character.MIN_RADIX && radix <= Character.MAX_RADIX) {
if (isDigit(ch)) {
value = ch - '0";
}
else if (isUpperCase(ch) || isLowerCase(ch)) {
// Java supradecimal digit
value = (ch & 0x1F) + 9;
}
}
return (value < radix) ? value : -1;
|
| public static boolean | isDigit(char ch)Determines if the specified character is a digit.
This is currently only supported for ISO Latin-1 digits: "0" through "9".
return ch >= '0" && ch <= '9";
|
| public static boolean | isLowerCase(char ch)Determines if the specified character is a lowercase character.
The default case converter in CLDC only supports the ISO Latin-1
range of characters.
Of the ISO Latin-1 characters (character codes 0x0000 through 0x00FF),
the following are lowercase:
a b c d e f g h i j k l m n o p q r s t u v w x y z
\u00DF \u00E0 \u00E1 \u00E2 \u00E3 \u00E4 \u00E5 \u00E6 \u00E7
\u00E8 \u00E9 \u00EA \u00EB \u00EC \u00ED \u00EE \u00EF \u00F0
\u00F1 \u00F2 \u00F3 \u00F4 \u00F5 \u00F6 \u00F8 \u00F9 \u00FA
\u00FB \u00FC \u00FD \u00FE \u00FF
return (ch >= 'a" && ch <= 'z")
|| (ch >= 0xDF && ch <= 0xF6)
|| (ch >= 0xF8 && ch <= 0xFF);
|
| public static boolean | isUpperCase(char ch)Determines if the specified character is an uppercase character.
The default case converter in CLDC only supports the ISO Latin-1
range of characters.
Of the ISO Latin-1 characters (character codes 0x0000 through 0x00FF),
the following are uppercase:
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
\u00C0 \u00C1 \u00C2 \u00C3 \u00C4 \u00C5 \u00C6 \u00C7
\u00C8 \u00C9 \u00CA \u00CB \u00CC \u00CD \u00CE \u00CF \u00D0
\u00D1 \u00D2 \u00D3 \u00D4 \u00D5 \u00D6 \u00D8 \u00D9 \u00DA
\u00DB \u00DC \u00DD \u00DE
return (ch >= 'A" && ch <= 'Z")
|| (ch >= 0xC0 && ch <= 0xD6)
|| (ch >= 0xD8 && ch <= 0xDE );
|
| public static char | toLowerCase(char ch)The given character is mapped to its lowercase equivalent; if the
character has no lowercase equivalent, the character itself is
returned. The default case converter in CLDC only supports
the ISO Latin-1 range of characters.
if (isUpperCase(ch)) {
if (ch <= 'Z") {
return (char)(ch + ('a" - 'A"));
} else {
return (char)(ch + 0x20);
}
} else {
return ch;
}
|
| public static char | toUpperCase(char ch)Converts the character argument to uppercase; if the
character has no lowercase equivalent, the character itself is
returned. The default case converter in CLDC only supports
the ISO Latin-1 range of characters.
if (isLowerCase(ch)) {
if (ch <= 'z") {
return (char)(ch - ('a" - 'A"));
} else {
return (char)(ch - 0x20);
}
} else {
return ch;
}
|
