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Class java.lang.Byte

java.lang.Object
    |
    +----java.lang.Number
            |
            +----java.lang.Byte

public final class Byte

extends Number

implements Comparable

Since:

JDK1.1

See Also:

Number

MAX_VALUE

The maximum value a Byte can have.

MIN_VALUE

The minimum value a Byte can have.

TYPE

The Class object representing the primitive type byte.

Byte(byte)

Constructs a Byte object initialized to the specified byte value.

Byte(String)

Constructs a Byte object initialized to the value specified by the String parameter.

byteValue()

Returns the value of this Byte as a byte.

compareTo(Byte)

Compares two Bytes numerically.

compareTo(Object)

Compares this Byte to another Object.

decode(String)

Decodes a String into a Byte.

doubleValue()

Returns the value of this Byte as a double.

equals(Object)

Compares this object to the specified object.

floatValue()

Returns the value of this Byte as a float.

hashCode()

Returns a hashcode for this Byte.

intValue()

Returns the value of this Byte as an int.

longValue()

Returns the value of this Byte as a long.

parseByte(String)

Assuming the specified String represents a byte, returns that byte's value.

parseByte(String, int)

Assuming the specified String represents a byte, returns that byte's value.

shortValue()

Returns the value of this Byte as a short.

toString()

Returns a String object representing this Byte's value.

toString(byte)

Returns a new String object representing the specified Byte.

valueOf(String)

Assuming the specified String represents a byte, returns a new Byte object initialized to that value.

valueOf(String, int)

Assuming the specified String represents a byte, returns a new Byte object initialized to that value.

public static final byte MIN_VALUE

The minimum value a Byte can have.

public static final byte MAX_VALUE

The maximum value a Byte can have.

public static final Class TYPE

The Class object representing the primitive type byte.

public Byte(byte value)

Constructs a Byte object initialized to the specified byte value.

Parameters:

value - the initial value of the Byte

public Byte(String s) throws NumberFormatException

Constructs a Byte object initialized to the value specified by the String parameter. The radix is assumed to be 10.

Parameters:

s - the String to be converted to a Byte

Throws: NumberFormatException

If the String does not contain a parsable byte.

public static String toString(byte b)

Returns a new String object representing the specified Byte. The radix is assumed to be 10.

Parameters:

b - the byte to be converted

public static byte parseByte(String s) throws NumberFormatException

Assuming the specified String represents a byte, returns that byte's value. Throws an exception if the String cannot be parsed as a byte. The radix is assumed to be 10.

Parameters:

s - the String containing the byte

Throws: NumberFormatException

If the string does not contain a parsable byte.

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

Assuming the specified String represents a byte, returns that byte's value. Throws an exception if the String cannot be parsed as a byte.

Parameters:

s - the String containing the byte

radix - the radix to be used

Throws: NumberFormatException

If the String does not contain a parsable byte.

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

Assuming the specified String represents a byte, returns a new Byte object initialized to that value. Throws an exception if the String cannot be parsed as a byte.

Parameters:

s - the String containing the integer

radix - the radix to be used

Throws: NumberFormatException

If the String does not contain a parsable byte.

public static Byte valueOf(String s) throws NumberFormatException

Assuming the specified String represents a byte, returns a new Byte object initialized to that value. Throws an exception if the String cannot be parsed as a byte. The radix is assumed to be 10.

Parameters:

s - the String containing the integer

Throws: NumberFormatException

If the String does not contain a parsable byte.

public static Byte decode(String nm) throws NumberFormatException

Decodes a String into a Byte. The String may represent decimal, hexadecimal, and octal numbers.

Parameters:

nm - the string to decode

public byte byteValue()

Returns the value of this Byte as a byte.

Overrides:

byteValue in class Number

public short shortValue()

Returns the value of this Byte as a short.

Overrides:

shortValue in class Number

public int intValue()

Returns the value of this Byte as an int.

Overrides:

intValue in class Number

public long longValue()

Returns the value of this Byte as a long.

Overrides:

longValue in class Number

public float floatValue()

Returns the value of this Byte as a float.

Overrides:

floatValue in class Number

public double doubleValue()

Returns the value of this Byte as a double.

Overrides:

doubleValue in class Number

public String toString()

Returns a String object representing this Byte's value.

Overrides:

toString in class Object

public int hashCode()

Returns a hashcode for this Byte.

Overrides:

hashCode in class Object

public boolean equals(Object obj)

Compares this object to the specified object.

Parameters:

obj - the object to compare with

Returns:

true if the objects are the same; false otherwise.

Overrides:

equals in class Object

public int compareTo(Byte anotherByte)

Compares two Bytes numerically.

Parameters:

anotherByte - the Byte to be compared.

Returns:

the value 0 if the argument Byte is equal to this Byte; a value less than 0 if this Byte is numerically less than the Byte argument; and a value greater than 0 if this Byte is numerically greater than the Byte argument (signed comparison).

public int compareTo(Object o)

Compares this Byte to another Object. If the Object is a Byte, this function behaves like compareTo(Byte). Otherwise, it throws a ClassCastException (as Bytes are comparable only to other Bytes).

Parameters:

o - the Object to be compared.

Returns:

the value 0 if the argument is a Byte numerically equal to this Byte; a value less than 0 if the argument is a Byte numerically greater than this Byte; and a value greater than 0 if the argument is a Byte numerically less than this Byte.

Throws: ClassCastException

if the argument is not a Byte.

See Also:

Comparable

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