Class java.lang.Character
All Packages    This Package    Previous    Next

Class java.lang.Character

java.lang.Object
   |
   +----java.lang.Character

public final class Character
extends Object
The Character class provides an object wrapper for character data values, and serves as a place for character-oriented operations.
Version:
1.13, 31 Jan 1995
Author:
Lee Boynton

MAX_RADIX
The maximum radix available for conversion to/from strings.
MIN_RADIX
The minimum radix available for conversion to/from strings.

Character(char)
Constructs a Character object with the specified value.

charValue()
Returns the value of this Character object.
digit(char, int)
Returns the numeric value of the character digit using the specified radix.
forDigit(int, int)
Returns the character value for the specified digit in the specified radix.
isDigit(char)
Determines if a character is a digit.
isLowerCase(char)
Determines if a character is lower case.
isUpperCase(char)
Determines if a character is upper case.
toLowerCase(char)
Returns the lower case character value of the specified character value.
toString()
Returns a String object representing this character's value.
toUpperCase(char)
Returns the upper case character value of the specified character value.

MIN_RADIX
  public final static int MIN_RADIX
The minimum radix available for conversion to/from strings.
See Also:
toString
MAX_RADIX
  public final static int MAX_RADIX
The maximum radix available for conversion to/from strings.
See Also:
toString

Character
  public Character(char value)
Constructs a Character object with the specified value.

isLowerCase
  public static boolean isLowerCase(char ch)
Determines if a character is lower case.
Parameters:
ch - the character to be tested
Returns:
true if the character is lower case.

isDigit

  public static boolean isDigit(char ch)
Determines if a character is a digit.
Parameters:
ch - the character to be tested
Returns:
true if the character is a digit.

isUpperCase

  public static boolean isUpperCase(char ch)
Determines if a character is upper case.
Parameters:
ch - the character to be tested
Returns:
true if the character is upper case.

toLowerCase

  public static char toLowerCase(char ch)
Returns the lower case character value of the specified character value. Characters that are not upper case letters are returned unmodified.
Parameters:
ch - the character to be converted
Returns:
the lower case version of ch

toUpperCase

  public static char toUpperCase(char ch)
Returns the upper case character value of the specified character value. Characters that are not lower case letters are returned unmodified.
Parameters:
ch - the character to be converted
Returns:
the upper case version of ch

digit

  public static int digit(char ch,
                          int radix)
Returns the numeric value of the character digit using the specified radix. If the character is not a valid digit, return -1.
Parameters:
ch - the character to be converted
radix - the radix
Returns:
the corresponding numeric value

forDigit

  public static char forDigit(int digit,
                              int radix)
Returns the character value for the specified digit in the specified radix. If the digit is not valid in that radix, the 0 character is returned.
Parameters:
digit - the digit
radix - the radix
Returns:
the corresponding character

charValue

  public char charValue()
Returns the value of this Character object.

toString

  public String toString()
Returns a String object representing this character's value.
Returns:
a String representing the value of the character.
Overrides:
toString in class Object


All Packages    This Package    Previous    Next