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| java.lang.Object
 java.lang.Character
All known Subclasses: java.awt.im.InputSubset,
| Character | | final public class Character extends Object (Code) | | The Character class wraps a value of the primitive type char
in an object. An object of type Character contains a
single field whose type is char.
In addition, this class provides several methods for determining
the type of a character and converting characters from uppercase
to lowercase and vice versa.
Character information is based on the Unicode Standard, version 3.0.
However, in order to reduce footprint, by default the character
property and case conversion operations in CLDC are available
only for the ISO Latin-1 range of characters. Other Unicode
character blocks can be supported as necessary.
version:
12/17/01 (CLDC 1.1)
since:
JDK1.0, CLDC 1.0 |
| Field Summary | |
| final public static int | MAX_RADIX
The maximum radix available for conversion to and from Strings. | | final public static char | MAX_VALUE
The constant value of this field is the largest value of type
char. | | final public static int | MIN_RADIX
The minimum radix available for conversion to and from Strings. | | final public static char | MIN_VALUE
The constant value of this field is the smallest value of type
char. |
| Constructor Summary | |
| public | Character(char value)
Constructs a Character object and initializes it so
that it represents the primitive value argument. |
| Method Summary | |
| public char | charValue()
Returns the value of this Character object. | | public static int | digit(char ch, int radix)
Returns the numeric value of the character ch in the
specified radix.
Parameters:
ch - the character to be converted.
Parameters:
radix - the radix. | | public boolean | equals(Object obj)
Compares this object against the specified object.
The result is true if and only if the argument is not
null and is a Character object that
represents the same char value as this object.
Parameters:
obj - the object to compare with. | | public int | hashCode()
Returns a hash code for this Character. | | public static boolean | isDigit(char ch)
Determines if the specified character is a digit.
Parameters:
ch - the character to be tested. | | public static boolean | isLowerCase(char ch)
Determines if the specified character is a lowercase character.
Note that by default 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
Parameters:
ch - the character to be tested. | | public static boolean | isUpperCase(char ch)
Determines if the specified character is an uppercase character.
Note that by default 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
Parameters:
ch - the character to be tested. | | 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.
Note that by default CLDC only supports
the ISO Latin-1 range of characters.
Parameters:
ch - the character to be converted. | | public String | toString()
Returns a String object representing this character's value.
Converts this Character object to a string. | | public static char | toUpperCase(char ch)
Converts the character argument to uppercase; if the
character has no uppercase equivalent, the character itself is
returned.
Note that by default CLDC only supports
the ISO Latin-1 range of characters.
Parameters:
ch - the character to be converted. |
| MAX_VALUE | | final public static char MAX_VALUE(Code) | | The constant value of this field is the largest value of type
char.
since:
JDK1.0.2 |
| MIN_VALUE | | final public static char MIN_VALUE(Code) | | The constant value of this field is the smallest value of type
char.
since:
JDK1.0.2 |
| Character | | public Character(char value)(Code) | | Constructs a Character object and initializes it so
that it represents the primitive value argument.
Parameters:
value - value for the new Character object. |
| charValue | | public char charValue()(Code) | | Returns the value of this Character object.
the primitive char value represented bythis object. |
| digit | | public static int digit(char ch, int radix)(Code) | | Returns the numeric value of the character ch in the
specified radix.
Parameters:
ch - the character to be converted.
Parameters:
radix - the radix. the numeric value represented by the character in thespecified radix.
See Also: java.lang.Character.isDigit(char)
since:
JDK1.0 |
| equals | | public boolean equals(Object obj)(Code) | | Compares this object against the specified object.
The result is true if and only if the argument is not
null and is a Character object that
represents the same char value as this object.
Parameters:
obj - the object to compare with. true if the objects are the same;false otherwise. |
| hashCode | | public int hashCode()(Code) | | Returns a hash code for this Character.
a hash code value for this object. |
| isDigit | | public static boolean isDigit(char ch)(Code) | | Determines if the specified character is a digit.
Parameters:
ch - the character to be tested. true if the character is a digit;false otherwise.
since:
JDK1.0 |
| isLowerCase | | public static boolean isLowerCase(char ch)(Code) | | Determines if the specified character is a lowercase character.
Note that by default 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
Parameters:
ch - the character to be tested. true if the character is lowercase;false otherwise.
since:
JDK1.0 |
| isUpperCase | | public static boolean isUpperCase(char ch)(Code) | | Determines if the specified character is an uppercase character.
Note that by default 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
Parameters:
ch - the character to be tested. true if the character is uppercase;false otherwise.
See Also: java.lang.Character.isLowerCase(char)
See Also: java.lang.Character.toUpperCase(char)
since:
1.0 |
| toString | | public String toString()(Code) | | Returns a String object representing this character's value.
Converts this Character object to a string. The
result is a string whose length is 1. The string's
sole component is the primitive char value represented
by this object.
a string representation of this object. |
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