public final class Short extends Number implements Comparable<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 Formpublic static final short MIN_VALUE
A constant holding the minimum value a short
can have, -215.
public static final short MAX_VALUE
A constant holding the maximum value a short
can have, 215-1.
public static final Class<Short> TYPE
The Class
instance representing the primitive type short
.
public static final int SIZE
The number of bits used to represent a short
value in two's complement binary form.
public static final int BYTES
The number of bytes used to represent a short
value in two's complement binary form.
public Short(short value)
Constructs a newly allocated Short
object that represents the specified short
value.
value
- the value to be represented by the Short
.public Short(String s) throws NumberFormatException
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.
s
- the String
to be converted to a Short
NumberFormatException
- If the String
does not contain a parsable short
.parseShort(java.lang.String, int)
public static String toString(short s)
Returns a new String
object representing the specified short
. The radix is assumed to be 10.
s
- the short
to be convertedshort
Integer.toString(int)
public static short parseShort(String s, int radix) throws NumberFormatException
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:
null
or is a string of length zero. Character.MIN_RADIX
or larger than Character.MAX_RADIX
. '-'
('\u002D'
) or plus sign '+'
('\u002B'
) 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 parseShort(String s) throws NumberFormatException
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.
s
- a String
containing the short
representation to be parsedshort
value represented by the argument in decimal.NumberFormatException
- If the string does not contain a parsable short
.public static Short valueOf(String s, int radix) throws NumberFormatException
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))
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
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))
s
- the string to be parsedShort
object holding the value represented by the string argumentNumberFormatException
- 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.
s
- a short value.Short
instance representing s
.public static Short decode(String nm) throws NumberFormatException
Decodes a String
into a Short
. Accepts decimal, hexadecimal, and octal numbers given by the following grammar:
0x
HexDigits 0X
HexDigits #
HexDigits 0
OctalDigits -
+
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
.
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()
Returns the value of this Short
as a byte
after a narrowing primitive conversion.
byteValue
in class Number
byte
.public short shortValue()
Returns the value of this Short
as a short
.
shortValue
in class Number
short
.public int intValue()
Returns the value of this Short
as an int
after a widening primitive conversion.
intValue
in class Number
int
.public long longValue()
Returns the value of this Short
as a long
after a widening primitive conversion.
longValue
in class Number
long
.public float floatValue()
Returns the value of this Short
as a float
after a widening primitive conversion.
floatValue
in class Number
float
.public double doubleValue()
Returns the value of this Short
as a double
after a widening primitive conversion.
doubleValue
in class Number
double
.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.
toString
in class Object
public int hashCode()
Returns a hash code for this Short
; equal to the result of invoking intValue()
.
hashCode
in class Object
Short
Object.equals(java.lang.Object)
, System.identityHashCode(java.lang.Object)
public static int hashCode(short value)
Returns a hash code for a short
value; compatible with Short.hashCode()
.
value
- the value to hashshort
value.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.
equals
in class Object
obj
- the object to compare withtrue
if the objects are the same; false
otherwise.Object.hashCode()
, HashMap
public int compareTo(Short anotherShort)
Compares two 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 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))
x
- the first short
to comparey
- the second short
to compare0
if x == y
; a value less than 0
if x < y
; and a value greater than 0
if x > y
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.
i
- the value whose bytes are to be reversedshort
value.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.
x
- the value to convert to an unsigned int
int
by an unsigned conversionpublic 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.
x
- the value to convert to an unsigned long
long
by an unsigned conversion
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