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Java™ Platform Standard Ed. 6 |
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java.lang.Object java.lang.Number java.lang.Short
public final class Short
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
.
Number
,
Serialized FormField Summary | |
---|---|
static short |
MAX_VALUE
A constant holding the maximum value a short can
have, 215-1. |
static short |
MIN_VALUE
A constant holding the minimum value a short can
have, -215. |
static int |
SIZE
The number of bits used to represent a short value in two's complement binary form. |
static Class<Short> |
TYPE
The Class instance representing the primitive type
short . |
Constructor Summary | |
---|---|
Short(short value)
Constructs a newly allocated Short object that
represents the specified short value. |
|
Short(String s)
Constructs a newly allocated Short object that
represents the short value indicated by the
String parameter. |
Method Summary | |
---|---|
byte |
byteValue()
Returns the value of this Short as a
byte . |
int |
compareTo(Short anotherShort)
Compares two Short objects numerically. |
static Short |
decode(String nm)
Decodes a String into a Short . |
double |
doubleValue()
Returns the value of this Short as a
double . |
boolean |
equals(Object obj)
Compares this object to the specified object. |
float |
floatValue()
Returns the value of this Short as a
float . |
int |
hashCode()
Returns a hash code for this Short . |
int |
intValue()
Returns the value of this Short as an
int . |
long |
longValue()
Returns the value of this Short as a
long . |
static short |
parseShort(String s)
Parses the string argument as a signed decimal 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 . |
String |
toString()
Returns a String object representing this
Short 's value. |
static String |
toString(short s)
Returns a new String object representing the
specified short . |
static Short |
valueOf(short s)
Returns a Short instance representing the specified short value. |
static Short |
valueOf(String s)
Returns a Short object holding the
value given by the specified String . |
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. |
Methods inherited from class java.lang.Object |
---|
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Field Detail |
---|
public static final short MIN_VALUE
short
can
have, -215.
public static final short MAX_VALUE
short
can
have, 215-1.
public static final Class<Short> TYPE
Class
instance representing the primitive type
short
.
public static final int SIZE
Constructor Detail |
---|
public Short(short value)
Short
object that
represents the specified short
value.
value
- the value to be represented by the
Short
.public Short(String s) throws NumberFormatException
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.
s
- the String
to be converted to a
Short
NumberFormatException
- If the String
does not contain a parsable short
.parseShort(java.lang.String, int)
Method Detail |
---|
public static String toString(short s)
String
object representing the
specified short
. The radix is assumed to be 10.
s
- the short
to be converted
short
Integer.toString(int)
public static short parseShort(String s) throws NumberFormatException
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. 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.
s
- a String
containing the short
representation to be parsed
short
value represented by the
argument in decimal.
NumberFormatException
- If the string does not
contain a parsable short
.public static short parseShort(String s, int radix) throws NumberFormatException
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. The
resulting byte
value is returned.
An exception of type NumberFormatException
is
thrown if any of the following situations occurs:
null
or is a string of
length zero.
Character.MIN_RADIX
or larger than Character.MAX_RADIX
.
'-'
('\u002D'
) provided that the
string is longer than length 1.
short
.
s
- the String
containing the
short
representation to be parsedradix
- the radix to be used while parsing s
short
represented by the string
argument in the specified radix.
NumberFormatException
- If the String
does not contain a parsable short
.public static Short valueOf(String s, int radix) throws NumberFormatException
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))
s
- the string to be parsedradix
- the radix to be used in interpreting s
Short
object holding the value
represented by the string argument in the
specified radix.
NumberFormatException
- If the String
does
not contain a parsable short
.public static Short valueOf(String s) throws NumberFormatException
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 Byte
object equal to
the value of:
new Short(Short.parseShort(s))
s
- the string to be parsed
Short
object holding the value
represented by the string argument
NumberFormatException
- If the String
does
not contain a parsable short
.public static Short valueOf(short s)
Short(short)
, as this method is likely to yield
significantly better space and time performance by caching
frequently requested values.
s
- a short value.
public static Short decode(String nm) throws NumberFormatException
String
into a Short
.
Accepts decimal, hexadecimal, and octal numbers given by
the following grammar:
DecimalNumeral, HexDigits, and OctalDigits are defined in §3.10.1 of the Java Language Specification.
- DecodableString:
- Signopt DecimalNumeral
- Signopt
0x
HexDigits- Signopt
0X
HexDigits- Signopt
#
HexDigits- Signopt
0
OctalDigits
- Sign:
-
The sequence of characters following an (optional) negative
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
.
nm
- the String
to decode.
Short
object holding the short
value represented by nm
NumberFormatException
- if the String
does not
contain a parsable short
.parseShort(java.lang.String, int)
public byte byteValue()
Short
as a
byte
.
byteValue
in class Number
byte
.public short shortValue()
Short
as a
short
.
shortValue
in class Number
short
.public int intValue()
Short
as an
int
.
intValue
in class Number
int
.public long longValue()
Short
as a
long
.
longValue
in class Number
long
.public float floatValue()
Short
as a
float
.
floatValue
in class Number
float
.public double doubleValue()
Short
as a
double
.
doubleValue
in class Number
double
.public String toString()
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.
toString
in class Object
public int hashCode()
Short
.
hashCode
in class Object
Object.equals(java.lang.Object)
,
Hashtable
public boolean equals(Object obj)
true
if and only if the argument is not
null
and is a Short
object that
contains the same short
value as this object.
equals
in class Object
obj
- the object to compare with
true
if the objects are the same;
false
otherwise.Object.hashCode()
,
Hashtable
public int compareTo(Short anotherShort)
Short
objects numerically.
compareTo
in interface Comparable<Short>
anotherShort
- the Short
to be compared.
0
if this Short
is
equal to the argument Short
; a value less than
0
if this Short
is numerically less
than the argument Short
; and a value greater than
0
if this Short
is numerically
greater than the argument Short
(signed
comparison).public static short reverseBytes(short i)
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Java™ Platform Standard Ed. 6 |
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