The Short
class wraps a value of primitive type short
in an object. An object of type Short
contains a
single field whose type is short
.
In addition, this class provides several methods for converting
a short
to a String
and a String
to a
short
, as well as other constants and methods useful when
dealing with a short
.
See Also
Constant Summary
int | BYTES | The number of bytes used to represent a short value in two's
complement binary form. |
short | MAX_VALUE | A constant holding the maximum value a short can
have, 215-1. |
short | MIN_VALUE | A constant holding the minimum value a short can
have, -215. |
int | SIZE | The number of bits used to represent a short value in two's
complement binary form. |
Field Summary
public static final Class<Short> | TYPE | The Class instance representing the primitive type
short . |
Public Constructor Summary
Short(short value)
Constructs a newly allocated
Short object that
represents the specified short value. |
|
Public Method Summary
byte |
byteValue()
Returns the value of this
Short as a byte after
a narrowing primitive conversion. |
static int |
compare(short x, short y)
Compares two
short values numerically. |
int | |
static Short | |
double |
doubleValue()
Returns the value of this
Short as a double
after a widening primitive conversion. |
boolean | |
float |
floatValue()
Returns the value of this
Short as a float
after a widening primitive conversion. |
static int |
hashCode(short value)
Returns a hash code for a
short value; compatible with
Short.hashCode() . |
int |
hashCode()
Returns a hash code for this
Short ; equal to the result
of invoking intValue() . |
int |
intValue()
Returns the value of this
Short as an int after
a widening primitive conversion. |
long |
longValue()
Returns the value of this
Short as a long after
a widening primitive conversion. |
static short | |
static short |
parseShort(String s, int radix)
Parses the string argument as a signed
short in the
radix specified by the second argument. |
static short |
reverseBytes(short i)
Returns the value obtained by reversing the order of the bytes in the
two's complement representation of the specified
short value. |
short |
shortValue()
Returns the value of this
Short as a
short . |
static String |
toString(short s)
Returns a new
String object representing the
specified short . |
String |
toString()
Returns a
String object representing this
Short 's value. |
static int |
toUnsignedInt(short x)
Converts the argument to an
int by an unsigned
conversion. |
static long |
toUnsignedLong(short x)
Converts the argument to a
long by an unsigned
conversion. |
static Short | |
static Short |
valueOf(short s)
Returns a
Short instance representing the specified
short value. |
static Short |
Inherited Method Summary
Constants
public static final int BYTES
The number of bytes used to represent a short
value in two's
complement binary form.
public static final short MAX_VALUE
A constant holding the maximum value a short
can
have, 215-1.
public static final short MIN_VALUE
A constant holding the minimum value a short
can
have, -215.
public static final int SIZE
The number of bits used to represent a short
value in two's
complement binary form.
Fields
Public Constructors
public Short (short value)
Constructs a newly allocated Short
object that
represents the specified short
value.
Parameters
value | the value to be represented by the
Short .
|
---|
public Short (String s)
Constructs a newly allocated Short
object that
represents the short
value indicated by the
String
parameter. The string is converted to a
short
value in exactly the manner used by the
parseShort
method for radix 10.
Parameters
s | the String to be converted to a
Short |
---|
Throws
NumberFormatException | If the String
does not contain a parsable short . |
---|
See Also
Public Methods
public byte byteValue ()
Returns the value of this Short
as a byte
after
a narrowing primitive conversion.
Returns
- the numeric value represented by this object after conversion
to type
byte
.
public static int compare (short x, short y)
Compares two short
values numerically.
The value returned is identical to what would be returned by:
Short.valueOf(x).compareTo(Short.valueOf(y))
Parameters
x | the first short to compare |
---|---|
y | the second short to compare |
Returns
- the value
0
ifx == y
; a value less than0
ifx < y
; and a value greater than0
ifx > y
public int compareTo (Short anotherShort)
Compares two Short
objects numerically.
Parameters
anotherShort | the Short to be compared. |
---|
Returns
- the value
0
if thisShort
is equal to the argumentShort
; a value less than0
if thisShort
is numerically less than the argumentShort
; and a value greater than0
if thisShort
is numerically greater than the argumentShort
(signed comparison).
public static Short decode (String nm)
Decodes a String
into a Short
.
Accepts decimal, hexadecimal, and octal numbers given by
the following grammar:
DecimalNumeral, HexDigits, and OctalDigits are as defined in section 3.10.1 of The Java™ Language Specification, except that underscores are not accepted between digits.
- DecodableString:
- Signopt DecimalNumeral
- Signopt
0x
HexDigits- Signopt
0X
HexDigits- Signopt
#
HexDigits- Signopt
0
OctalDigits- Sign:
-
+
The sequence of characters following an optional
sign and/or radix specifier ("0x
", "0X
",
"#
", or leading zero) is parsed as by the Short.parseShort
method with the indicated radix (10, 16, or
8). This sequence of characters must represent a positive
value or a NumberFormatException
will be thrown. The
result is negated if first character of the specified String
is the minus sign. No whitespace characters are
permitted in the String
.
Parameters
nm | the String to decode. |
---|
Returns
- a
Short
object holding theshort
value represented bynm
Throws
NumberFormatException | if the String does not
contain a parsable short . |
---|
See Also
public double doubleValue ()
Returns the value of this Short
as a double
after a widening primitive conversion.
Returns
- the numeric value represented by this object after conversion
to type
double
.
public boolean equals (Object obj)
Compares this object to the specified object. The result is
true
if and only if the argument is not
null
and is a Short
object that
contains the same short
value as this object.
Parameters
obj | the object to compare with |
---|
Returns
true
if the objects are the same;false
otherwise.
public float floatValue ()
Returns the value of this Short
as a float
after a widening primitive conversion.
Returns
- the numeric value represented by this object after conversion
to type
float
.
public static int hashCode (short value)
Returns a hash code for a short
value; compatible with
Short.hashCode()
.
Parameters
value | the value to hash |
---|
Returns
- a hash code value for a
short
value.
public int hashCode ()
Returns a hash code for this Short
; equal to the result
of invoking intValue()
.
Returns
- a hash code value for this
Short
public int intValue ()
Returns the value of this Short
as an int
after
a widening primitive conversion.
Returns
- the numeric value represented by this object after conversion
to type
int
.
public long longValue ()
Returns the value of this Short
as a long
after
a widening primitive conversion.
Returns
- the numeric value represented by this object after conversion
to type
long
.
public static short parseShort (String s)
Parses the string argument as a signed decimal short
. The characters in the string must all be decimal
digits, except that the first character may be an ASCII minus
sign '-'
('\u002D'
) to indicate a
negative value or an ASCII plus sign '+'
('\u002B'
) to indicate a positive value. The
resulting short
value is returned, exactly as if the
argument and the radix 10 were given as arguments to the parseShort(java.lang.String, int)
method.
Parameters
s | a String containing the short
representation to be parsed |
---|
Returns
- the
short
value represented by the argument in decimal.
Throws
NumberFormatException | If the string does not
contain a parsable short .
|
---|
public static short parseShort (String s, int radix)
Parses the string argument as a signed short
in the
radix specified by the second argument. The characters in the
string must all be digits, of the specified radix (as
determined by whether Character.digit(char, int)
returns a nonnegative value) except that the first
character may be an ASCII minus sign '-'
('\u002D'
) to indicate a negative value or an
ASCII plus sign '+'
('\u002B'
) to
indicate a positive value. The resulting short
value
is returned.
An exception of type NumberFormatException
is
thrown if any of the following situations occurs:
- The first argument is
null
or is a string of length zero. - The radix is either smaller than
Character.MIN_RADIX
or larger thanCharacter.MAX_RADIX
. - Any character of the string is not a digit of the
specified radix, except that the first character may be a minus
sign
'-'
('\u002D'
) or plus sign'+'
('\u002B'
) provided that the string is longer than length 1. - The value represented by the string is not a value of type
short
.
Parameters
s | the String containing the
short representation to be parsed |
---|---|
radix | the radix to be used while parsing s |
Returns
- the
short
represented by the string argument in the specified radix.
Throws
NumberFormatException | If the String
does not contain a parsable short .
|
---|
public static short reverseBytes (short i)
Returns the value obtained by reversing the order of the bytes in the
two's complement representation of the specified short
value.
Parameters
i | the value whose bytes are to be reversed |
---|
Returns
- the value obtained by reversing (or, equivalently, swapping)
the bytes in the specified
short
value.
public short shortValue ()
Returns the value of this Short
as a
short
.
Returns
- the numeric value represented by this object after conversion
to type
short
.
public static String toString (short s)
Returns a new String
object representing the
specified short
. The radix is assumed to be 10.
Parameters
s | the short to be converted |
---|
Returns
- the string representation of the specified
short
See Also
public String toString ()
Returns a String
object representing this
Short
's value. The value is converted to signed
decimal representation and returned as a string, exactly as if
the short
value were given as an argument to the
toString(short)
method.
Returns
- a string representation of the value of this object in base 10.
public static int toUnsignedInt (short x)
Converts the argument to an int
by an unsigned
conversion. In an unsigned conversion to an int
, the
high-order 16 bits of the int
are zero and the
low-order 16 bits are equal to the bits of the short
argument.
Consequently, zero and positive short
values are mapped
to a numerically equal int
value and negative short
values are mapped to an int
value equal to the
input plus 216.
Parameters
x | the value to convert to an unsigned int |
---|
Returns
- the argument converted to
int
by an unsigned conversion
public static long toUnsignedLong (short x)
Converts the argument to a long
by an unsigned
conversion. In an unsigned conversion to a long
, the
high-order 48 bits of the long
are zero and the
low-order 16 bits are equal to the bits of the short
argument.
Consequently, zero and positive short
values are mapped
to a numerically equal long
value and negative short
values are mapped to a long
value equal to the
input plus 216.
Parameters
x | the value to convert to an unsigned long |
---|
Returns
- the argument converted to
long
by an unsigned conversion
public static Short valueOf (String s)
Returns a Short
object holding the
value given by the specified String
. The argument
is interpreted as representing a signed decimal
short
, exactly as if the argument were given to
the parseShort(java.lang.String)
method. The result is
a Short
object that represents the
short
value specified by the string.
In other words, this method returns a Short
object
equal to the value of:
new Short(Short.parseShort(s))
Parameters
s | the string to be parsed |
---|
Returns
- a
Short
object holding the value represented by the string argument
Throws
NumberFormatException | If the String does
not contain a parsable short .
|
---|
public static Short valueOf (short s)
Returns a Short
instance representing the specified
short
value.
If a new Short
instance is not required, this method
should generally be used in preference to the constructor
Short(short)
, as this method is likely to yield
significantly better space and time performance by caching
frequently requested values.
This method will always cache values in the range -128 to 127,
inclusive, and may cache other values outside of this range.
Parameters
s | a short value. |
---|
Returns
- a
Short
instance representings
.
public static Short valueOf (String s, int radix)
Returns a Short
object holding the value
extracted from the specified String
when parsed
with the radix given by the second argument. The first argument
is interpreted as representing a signed short
in
the radix specified by the second argument, exactly as if the
argument were given to the parseShort(java.lang.String, int)
method. The result is a Short
object that
represents the short
value specified by the string.
In other words, this method returns a Short
object
equal to the value of:
new Short(Short.parseShort(s, radix))
Parameters
s | the string to be parsed |
---|---|
radix | the radix to be used in interpreting s |
Returns
- a
Short
object holding the value represented by the string argument in the specified radix.
Throws
NumberFormatException | If the String does
not contain a parsable short .
|
---|