java.lang
public
final
class
java.lang.Byte
Byte is the wrapper for the primitive type byte
.
Summary
Constants
|
|
|
Value |
|
byte |
MAX_VALUE |
Constant for the maximum byte value, 27-1. |
127 |
0x0000007f |
byte |
MIN_VALUE |
Constant for the minimum byte value, -27. |
-128 |
0xffffff80 |
int |
SIZE |
Constant for the number of bits to represent a byte in
two's compliment form. |
8 |
0x00000008 |
Class<Byte> |
TYPE |
The java.lang.Class that represents this class. |
|
|
Public Constructors
Public Methods
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait
Details
Constants
public
static
final
byte
MAX_VALUE
Constant for the maximum byte
value, 27-1.
Constant Value:
127
(0x0000007f)
public
static
final
byte
MIN_VALUE
Constant for the minimum byte
value, -27.
Constant Value:
-128
(0xffffff80)
public
static
final
int
SIZE
Constant for the number of bits to represent a byte
in
two's compliment form.
Constant Value:
8
(0x00000008)
public
static
final
Class<Byte>
TYPE
The java.lang.Class that represents this class.
Public Constructors
public
Byte(byte value)
Constructs a new instance of the receiver which represents the byte
valued argument.
Parameters
value
| the byte to store in the new instance.
|
public
Byte(String string)
Constructs a new instance of this class given a string.
Parameters
string
| a string representation of a single byte quantity. |
Public Methods
public
byte
byteValue()
Returns the byte value which the receiver represents
Returns
- byte the value of the receiver.
public
int
compareTo(Byte object)
Compares this Byte
to the Byte
passed. If
this instance's value is equal to the value of the instance passed, then
0 is returned. If this instance's value is less than the value of the
instance passed, then a negative value is returned. If this instance's
value is greater than the value of the instance passed, then a positive
value is returned.
Parameters
object
| The instance to compare to. |
public
static
Byte
decode(String string)
Parses the string argument as if it was a byte value and returns the
result. It is an error if the received string does not contain a
representation of a single byte quantity. The string may be a hexadecimal
("0x..."), octal ("0..."), or decimal ("...") representation of a byte.
Parameters
string
| a string representation of a single byte quantity. |
Returns
- Byte the value represented by the argument
public
double
doubleValue()
Returns the double value which the receiver represents
Returns
- double the value of the receiver.
public
boolean
equals(Object object)
Compares the argument to the receiver, and returns true if they represent
the
same object using a class specific comparison.
In this case, the argument must also be a Byte, and the receiver and
argument must represent the same byte value.
Parameters
object
| the object to compare with this object |
Returns
true
if the object is the same as this object
false
if it is different from this object
public
float
floatValue()
Returns the float value which the receiver represents
Returns
- float the value of the receiver.
public
int
hashCode()
Returns an integer hash code for the receiver. Any two objects which
answer
true
when passed to
equals
must
answer the same value for this method.
public
int
intValue()
Returns the int value which the receiver represents
Returns
- int the value of the receiver.
public
long
longValue()
Returns the long value which the receiver represents
Returns
- long the value of the receiver.
public
static
byte
parseByte(String string, int radix)
Parses the string argument as if it was a byte value and returns the
result. Throws NumberFormatException if the string does not represent a
single byte quantity. The second argument specifies the radix to use when
parsing the value.
Parameters
string
| a string representation of a single byte quantity. |
radix
| the radix to use when parsing. |
Returns
- byte the value represented by the argument
public
static
byte
parseByte(String string)
Parses the string argument as if it was a byte value and returns the
result. Throws NumberFormatException if the string does not represent a
single byte quantity.
Parameters
string
| a string representation of a single byte quantity. |
Returns
- byte the value represented by the argument
public
short
shortValue()
Returns the short value which the receiver represents
Returns
- short the value of the receiver.
public
String
toString()
Returns a string containing a concise, human-readable description of the
receiver.
Returns
- a printable representation for the receiver.
public
static
String
toString(byte value)
Returns a string containing a concise, human-readable description of the
argument.
Parameters
value
| byte the byte to convert. |
Returns
- String a printable representation for the byte.
public
static
Byte
valueOf(String string, int radix)
Parses the string argument as if it was a byte value and returns a Byte
representing the result. Throws NumberFormatException if the string
cannot be parsed as a byte quantity. The second argument specifies the
radix to use when parsing the value.
Parameters
string
| a string representation of a single byte quantity. |
radix
| the radix to use when parsing. |
Returns
- Byte the value represented by the argument
public
static
Byte
valueOf(String string)
Parses the string argument as if it was a byte value and returns a Byte
representing the result. Throws NumberFormatException if the string
cannot be parsed as a byte quantity.
Parameters
string
| a string representation of a single byte quantity. |
Returns
- Byte the value represented by the argument
public
static
Byte
valueOf(byte b)
Returns a Byte
instance for the byte
value passed.
This method is preferred over the constructor, as this method may maintain a cache
of instances.