java.lang

Class Byte

java.lang.Object

java.lang.Number

java.lang.Byte

public final class Byte
extends Number

Field Summary

Fields

Modifier and Type	Field and Description
static byte	MAX_VALUE MAX_VALUE
static byte	MIN_VALUE MIN_VALUE
static Class	TYPE TYPE

Constructor Summary

Constructors

Constructor and Description
Byte(byte byte0) Byte
Byte(String s) Byte

Method Summary

Modifier and Type	Method and Description
byte	byteValue() byteValue
static Byte	decode(String s)
double	doubleValue()
boolean	equals(Object obj) Compares two Objects for equality.
float	floatValue()
int	hashCode() Returns a hash code value for the object.
int	intValue()
long	longValue()
static byte	parseByte(String s)
static byte	parseByte(String s, int i)
short	shortValue()
String	toString() Returns a string representation of the object.
static String	toString(byte byte0)
static Byte	valueOf(byte b) Returns a Byte instance representing the specified byte value.
static Byte	valueOf(String s)
static Byte	valueOf(String s, int i)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

MIN_VALUE

public static final byte MIN_VALUE

MIN_VALUE

See Also:

Constant Field Values

MAX_VALUE

public static final byte MAX_VALUE

MAX_VALUE

See Also:

Constant Field Values

TYPE

public static final Class TYPE

TYPE

Constructor Detail

Byte

public Byte(byte byte0)

Byte

Parameters:

byte0 - ?

Byte

public Byte(String s)
     throws NumberFormatException

Byte

Parameters:

s - ?

Throws:

NumberFormatException - ?

Method Detail

byteValue

public byte byteValue()

byteValue

Overrides:

byteValue in class Number

Returns:

?

decode

public static Byte decode(String s)
                   throws NumberFormatException

Parameters:

s - ?

Returns:

?

Throws:

NumberFormatException - ?

doubleValue

public double doubleValue()

Specified by:

doubleValue in class Number

Returns:

?

equals

public boolean equals(Object obj)

Description copied from class: Object

Compares two Objects for equality.

The equals method implements an equivalence relation:

• It is reflexive: for any reference value x, x.equals(x) should return true.
• It is symmetric: for any reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
• It is transitive: for any reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
• It is consistent: for any reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false.
• For any reference value x, x.equals(null) should return false.

The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any reference values x and y, this method returns true if and only if x and y refer to the same object (x==y has the value true).

Overrides:

equals in class Object

Parameters:

obj - the reference object with which to compare.

Returns:

true if this object is the same as the obj argument; false otherwise.

See Also:

Boolean.hashCode(), Hashtable

floatValue

public float floatValue()

Specified by:

floatValue in class Number

Returns:

?

hashCode

public int hashCode()

Description copied from class: Object

Returns a hash code value for the object. This method is supported for the benefit of hashtables such as those provided by java.util.Hashtable.

The general contract of hashCode is:

• Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer. This integer need not remain consistent from one execution of an application to another execution of the same application.
• If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.

Overrides:

hashCode in class Object

Returns:

a hash code value for this object.

See Also:

Object.equals(java.lang.Object), Hashtable

intValue

public int intValue()

Specified by:

intValue in class Number

Returns:

?

longValue

public long longValue()

Specified by:

longValue in class Number

Returns:

?

parseByte

public static byte parseByte(String s)
                      throws NumberFormatException

Parameters:

s - ?

Returns:

?

Throws:

NumberFormatException - ?

parseByte

public static byte parseByte(String s,
                             int i)
                      throws NumberFormatException

Parameters:

s - ?

i - ?

Returns:

?

Throws:

NumberFormatException - ?

shortValue

public short shortValue()

Overrides:

shortValue in class Number

Returns:

?

toString

public String toString()

Description copied from class: Object

Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.

The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object.

Overrides:

toString in class Object

Returns:

a string representation of the object.

toString

public static String toString(byte byte0)

Parameters:

byte0 - ?

Returns:

?

valueOf

public static Byte valueOf(String s)
                    throws NumberFormatException

Parameters:

s - ?

Returns:

?

Throws:

NumberFormatException - ?

valueOf

public static Byte valueOf(String s,
                           int i)
                    throws NumberFormatException

Parameters:

s - ?

i - ?

Returns:

?

Throws:

NumberFormatException - ?

valueOf

public static Byte valueOf(byte b)

Returns a Byte instance representing the specified byte value.

Parameters:

b - a byte value.

Returns:

a Byte instance representing b.