- java.lang.Object
-
- java.lang.Number
-
- java.lang.Long
-
- All Implemented Interfaces:
- Serializable, Comparable<Long>
public final class Long extends Number implements Comparable<Long>
TheLong
class wraps a value of the primitive typelong
in an object. An object of typeLong
contains a single field whose type islong
.In addition, this class provides several methods for converting a
long
to aString
and aString
to along
, as well as other constants and methods useful when dealing with along
.Implementation note: The implementations of the "bit twiddling" methods (such as
highestOneBit
andnumberOfTrailingZeros
) are based on material from Henry S. Warren, Jr.'s Hacker's Delight, (Addison Wesley, 2002).- Since:
- JDK1.0
- See Also:
- Serialized Form
-
-
Field Summary
Fields Modifier and Type Field and Description static long
MAX_VALUE
A constant holding the maximum value along
can have, 263-1.static long
MIN_VALUE
A constant holding the minimum value along
can have, -263.static int
SIZE
The number of bits used to represent along
value in two's complement binary form.static Class<Long>
TYPE
TheClass
instance representing the primitive typelong
.
-
Constructor Summary
Constructors Constructor and Description Long(long value)
Constructs a newly allocatedLong
object that represents the specifiedlong
argument.Long(String s)
Constructs a newly allocatedLong
object that represents thelong
value indicated by theString
parameter.
-
Method Summary
Methods Modifier and Type Method and Description static int
bitCount(long i)
Returns the number of one-bits in the two's complement binary representation of the specifiedlong
value.byte
byteValue()
Returns the value of thisLong
as abyte
.static int
compare(long x, long y)
Compares twolong
values numerically.int
compareTo(Long anotherLong)
Compares twoLong
objects numerically.static Long
decode(String nm)
Decodes aString
into aLong
.double
doubleValue()
Returns the value of thisLong
as adouble
.boolean
equals(Object obj)
Compares this object to the specified object.float
floatValue()
Returns the value of thisLong
as afloat
.static Long
getLong(String nm)
Determines thelong
value of the system property with the specified name.static Long
getLong(String nm, long val)
Determines thelong
value of the system property with the specified name.static Long
getLong(String nm, Long val)
Returns thelong
value of the system property with the specified name.int
hashCode()
Returns a hash code for thisLong
.static long
highestOneBit(long i)
Returns along
value with at most a single one-bit, in the position of the highest-order ("leftmost") one-bit in the specifiedlong
value.int
intValue()
Returns the value of thisLong
as anint
.long
longValue()
Returns the value of thisLong
as along
value.static long
lowestOneBit(long i)
Returns along
value with at most a single one-bit, in the position of the lowest-order ("rightmost") one-bit in the specifiedlong
value.static int
numberOfLeadingZeros(long i)
Returns the number of zero bits preceding the highest-order ("leftmost") one-bit in the two's complement binary representation of the specifiedlong
value.static int
numberOfTrailingZeros(long i)
Returns the number of zero bits following the lowest-order ("rightmost") one-bit in the two's complement binary representation of the specifiedlong
value.static long
parseLong(String s)
Parses the string argument as a signed decimallong
.static long
parseLong(String s, int radix)
Parses the string argument as a signedlong
in the radix specified by the second argument.static long
reverse(long i)
Returns the value obtained by reversing the order of the bits in the two's complement binary representation of the specifiedlong
value.static long
reverseBytes(long i)
Returns the value obtained by reversing the order of the bytes in the two's complement representation of the specifiedlong
value.static long
rotateLeft(long i, int distance)
Returns the value obtained by rotating the two's complement binary representation of the specifiedlong
value left by the specified number of bits.static long
rotateRight(long i, int distance)
Returns the value obtained by rotating the two's complement binary representation of the specifiedlong
value right by the specified number of bits.short
shortValue()
Returns the value of thisLong
as ashort
.static int
signum(long i)
Returns the signum function of the specifiedlong
value.static String
toBinaryString(long i)
Returns a string representation of thelong
argument as an unsigned integer in base 2.static String
toHexString(long i)
Returns a string representation of thelong
argument as an unsigned integer in base 16.static String
toOctalString(long i)
Returns a string representation of thelong
argument as an unsigned integer in base 8.String
toString()
Returns aString
object representing thisLong
's value.static String
toString(long i)
Returns aString
object representing the specifiedlong
.static String
toString(long i, int radix)
Returns a string representation of the first argument in the radix specified by the second argument.static Long
valueOf(long l)
Returns aLong
instance representing the specifiedlong
value.static Long
valueOf(String s)
Returns aLong
object holding the value of the specifiedString
.static Long
valueOf(String s, int radix)
Returns aLong
object holding the value extracted from the specifiedString
when parsed with the radix given by the second argument.
-
-
-
Field Detail
-
MIN_VALUE
public static final long MIN_VALUE
A constant holding the minimum value along
can have, -263.- See Also:
- Constant Field Values
-
MAX_VALUE
public static final long MAX_VALUE
A constant holding the maximum value along
can have, 263-1.- See Also:
- Constant Field Values
-
TYPE
public static final Class<Long> TYPE
TheClass
instance representing the primitive typelong
.- Since:
- JDK1.1
-
SIZE
public static final int SIZE
The number of bits used to represent along
value in two's complement binary form.- Since:
- 1.5
- See Also:
- Constant Field Values
-
-
Constructor Detail
-
Long
public Long(long value)
Constructs a newly allocatedLong
object that represents the specifiedlong
argument.- Parameters:
value
- the value to be represented by theLong
object.
-
Long
public Long(String s) throws NumberFormatException
Constructs a newly allocatedLong
object that represents thelong
value indicated by theString
parameter. The string is converted to along
value in exactly the manner used by theparseLong
method for radix 10.- Parameters:
s
- theString
to be converted to aLong
.- Throws:
NumberFormatException
- if theString
does not contain a parsablelong
.- See Also:
parseLong(java.lang.String, int)
-
-
Method Detail
-
toString
public static String toString(long i, int radix)
Returns a string representation of the first argument in the radix specified by the second argument.If the radix is smaller than
Character.MIN_RADIX
or larger thanCharacter.MAX_RADIX
, then the radix10
is used instead.If the first argument is negative, the first element of the result is the ASCII minus sign
'-'
('\u002d'
). If the first argument is not negative, no sign character appears in the result.The remaining characters of the result represent the magnitude of the first argument. If the magnitude is zero, it is represented by a single zero character
'0'
('\u0030'
); otherwise, the first character of the representation of the magnitude will not be the zero character. The following ASCII characters are used as digits:0123456789abcdefghijklmnopqrstuvwxyz
'\u0030'
through'\u0039'
and'\u0061'
through'\u007a'
. Ifradix
is N, then the first N of these characters are used as radix-N digits in the order shown. Thus, the digits for hexadecimal (radix 16) are0123456789abcdef
. If uppercase letters are desired, theString.toUpperCase()
method may be called on the result:Long.toString(n, 16).toUpperCase()
- Parameters:
i
- along
to be converted to a string.radix
- the radix to use in the string representation.- Returns:
- a string representation of the argument in the specified radix.
- See Also:
Character.MAX_RADIX
,Character.MIN_RADIX
-
toHexString
public static String toHexString(long i)
Returns a string representation of thelong
argument as an unsigned integer in base 16.The unsigned
long
value is the argument plus 264 if the argument is negative; otherwise, it is equal to the argument. This value is converted to a string of ASCII digits in hexadecimal (base 16) with no extra leading0
s. If the unsigned magnitude is zero, it is represented by a single zero character'0'
('\u0030'
); otherwise, the first character of the representation of the unsigned magnitude will not be the zero character. The following characters are used as hexadecimal digits:0123456789abcdef
'\u0030'
through'\u0039'
and'\u0061'
through'\u0066'
. If uppercase letters are desired, theString.toUpperCase()
method may be called on the result:Long.toHexString(n).toUpperCase()
- Parameters:
i
- along
to be converted to a string.- Returns:
- the string representation of the unsigned
long
value represented by the argument in hexadecimal (base 16). - Since:
- JDK 1.0.2
-
toOctalString
public static String toOctalString(long i)
Returns a string representation of thelong
argument as an unsigned integer in base 8.The unsigned
long
value is the argument plus 264 if the argument is negative; otherwise, it is equal to the argument. This value is converted to a string of ASCII digits in octal (base 8) with no extra leading0
s.If the unsigned magnitude is zero, it is represented by a single zero character
'0'
('\u0030'
); otherwise, the first character of the representation of the unsigned magnitude will not be the zero character. The following characters are used as octal digits:01234567
'\u0030'
through'\u0037'
.- Parameters:
i
- along
to be converted to a string.- Returns:
- the string representation of the unsigned
long
value represented by the argument in octal (base 8). - Since:
- JDK 1.0.2
-
toBinaryString
public static String toBinaryString(long i)
Returns a string representation of thelong
argument as an unsigned integer in base 2.The unsigned
long
value is the argument plus 264 if the argument is negative; otherwise, it is equal to the argument. This value is converted to a string of ASCII digits in binary (base 2) with no extra leading0
s. If the unsigned magnitude is zero, it is represented by a single zero character'0'
('\u0030'
); otherwise, the first character of the representation of the unsigned magnitude will not be the zero character. The characters'0'
('\u0030'
) and'1'
('\u0031'
) are used as binary digits.- Parameters:
i
- along
to be converted to a string.- Returns:
- the string representation of the unsigned
long
value represented by the argument in binary (base 2). - Since:
- JDK 1.0.2
-
toString
public static String toString(long i)
Returns aString
object representing the specifiedlong
. The argument is converted to signed decimal representation and returned as a string, exactly as if the argument and the radix 10 were given as arguments to thetoString(long, int)
method.- Parameters:
i
- along
to be converted.- Returns:
- a string representation of the argument in base 10.
-
parseLong
public static long parseLong(String s, int radix) throws NumberFormatException
Parses the string argument as a signedlong
in the radix specified by the second argument. The characters in the string must all be digits of the specified radix (as determined by whetherCharacter.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 resultinglong
value is returned.Note that neither the character
L
('\u004C'
) norl
('\u006C'
) is permitted to appear at the end of the string as a type indicator, as would be permitted in Java programming language source code - except that eitherL
orl
may appear as a digit for a radix greater than 22.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 thanCharacter.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
long
.
Examples:
parseLong("0", 10) returns 0L parseLong("473", 10) returns 473L parseLong("+42", 10) returns 42L parseLong("-0", 10) returns 0L parseLong("-FF", 16) returns -255L parseLong("1100110", 2) returns 102L parseLong("99", 8) throws a NumberFormatException parseLong("Hazelnut", 10) throws a NumberFormatException parseLong("Hazelnut", 36) returns 1356099454469L
- Parameters:
s
- theString
containing thelong
representation to be parsed.radix
- the radix to be used while parsings
.- Returns:
- the
long
represented by the string argument in the specified radix. - Throws:
NumberFormatException
- if the string does not contain a parsablelong
.
- The first argument is
-
parseLong
public static long parseLong(String s) throws NumberFormatException
Parses the string argument as a signed decimallong
. 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 resultinglong
value is returned, exactly as if the argument and the radix10
were given as arguments to theparseLong(java.lang.String, int)
method.Note that neither the character
L
('\u004C'
) norl
('\u006C'
) is permitted to appear at the end of the string as a type indicator, as would be permitted in Java programming language source code.- Parameters:
s
- aString
containing thelong
representation to be parsed- Returns:
- the
long
represented by the argument in decimal. - Throws:
NumberFormatException
- if the string does not contain a parsablelong
.
-
valueOf
public static Long valueOf(String s, int radix) throws NumberFormatException
Returns aLong
object holding the value extracted from the specifiedString
when parsed with the radix given by the second argument. The first argument is interpreted as representing a signedlong
in the radix specified by the second argument, exactly as if the arguments were given to theparseLong(java.lang.String, int)
method. The result is aLong
object that represents thelong
value specified by the string.In other words, this method returns a
Long
object equal to the value of:new Long(Long.parseLong(s, radix))
- Parameters:
s
- the string to be parsedradix
- the radix to be used in interpretings
- Returns:
- a
Long
object holding the value represented by the string argument in the specified radix. - Throws:
NumberFormatException
- If theString
does not contain a parsablelong
.
-
valueOf
public static Long valueOf(String s) throws NumberFormatException
Returns aLong
object holding the value of the specifiedString
. The argument is interpreted as representing a signed decimallong
, exactly as if the argument were given to theparseLong(java.lang.String)
method. The result is aLong
object that represents the integer value specified by the string.In other words, this method returns a
Long
object equal to the value of:new Long(Long.parseLong(s))
- Parameters:
s
- the string to be parsed.- Returns:
- a
Long
object holding the value represented by the string argument. - Throws:
NumberFormatException
- If the string cannot be parsed as along
.
-
valueOf
public static Long valueOf(long l)
Returns aLong
instance representing the specifiedlong
value. If a newLong
instance is not required, this method should generally be used in preference to the constructorLong(long)
, as this method is likely to yield significantly better space and time performance by caching frequently requested values. Note that unlike the corresponding method in theInteger
class, this method is not required to cache values within a particular range.- Parameters:
l
- a long value.- Returns:
- a
Long
instance representingl
. - Since:
- 1.5
-
decode
public static Long decode(String nm) throws NumberFormatException
Decodes aString
into aLong
. Accepts decimal, hexadecimal, and octal numbers given by the following grammar:- DecodableString:
- Signopt DecimalNumeral
- Signopt
0x
HexDigits- Signopt
0X
HexDigits- Signopt
#
HexDigits- Signopt
0
OctalDigits - Signopt
- Sign:
-
+
The sequence of characters following an optional sign and/or radix specifier ("
0x
", "0X
", "#
", or leading zero) is parsed as by theLong.parseLong
method with the indicated radix (10, 16, or 8). This sequence of characters must represent a positive value or aNumberFormatException
will be thrown. The result is negated if first character of the specifiedString
is the minus sign. No whitespace characters are permitted in theString
.- Parameters:
nm
- theString
to decode.- Returns:
- a
Long
object holding thelong
value represented bynm
- Throws:
NumberFormatException
- if theString
does not contain a parsablelong
.- Since:
- 1.2
- See Also:
parseLong(String, int)
-
byteValue
public byte byteValue()
Returns the value of thisLong
as abyte
.
-
shortValue
public short shortValue()
Returns the value of thisLong
as ashort
.- Overrides:
shortValue
in classNumber
- Returns:
- the numeric value represented by this object after conversion
to type
short
.
-
intValue
public int intValue()
Returns the value of thisLong
as anint
.
-
longValue
public long longValue()
Returns the value of thisLong
as along
value.
-
floatValue
public float floatValue()
Returns the value of thisLong
as afloat
.- Specified by:
floatValue
in classNumber
- Returns:
- the numeric value represented by this object after conversion
to type
float
.
-
doubleValue
public double doubleValue()
Returns the value of thisLong
as adouble
.- Specified by:
doubleValue
in classNumber
- Returns:
- the numeric value represented by this object after conversion
to type
double
.
-
toString
public String toString()
Returns aString
object representing thisLong
's value. The value is converted to signed decimal representation and returned as a string, exactly as if thelong
value were given as an argument to thetoString(long)
method.
-
hashCode
public int hashCode()
Returns a hash code for thisLong
. The result is the exclusive OR of the two halves of the primitivelong
value held by thisLong
object. That is, the hashcode is the value of the expression:(int)(this.longValue()^(this.longValue()>>>32))
- Overrides:
hashCode
in classObject
- Returns:
- a hash code value for this object.
- See Also:
Object.equals(java.lang.Object)
,System.identityHashCode(java.lang.Object)
-
equals
public boolean equals(Object obj)
Compares this object to the specified object. The result istrue
if and only if the argument is notnull
and is aLong
object that contains the samelong
value as this object.- Overrides:
equals
in classObject
- Parameters:
obj
- the object to compare with.- Returns:
true
if the objects are the same;false
otherwise.- See Also:
Object.hashCode()
,HashMap
-
getLong
public static Long getLong(String nm)
Determines thelong
value of the system property with the specified name.The first argument is treated as the name of a system property. System properties are accessible through the
System.getProperty(java.lang.String)
method. The string value of this property is then interpreted as along
value and aLong
object representing this value is returned. Details of possible numeric formats can be found with the definition ofgetProperty
.If there is no property with the specified name, if the specified name is empty or
null
, or if the property does not have the correct numeric format, thennull
is returned.In other words, this method returns a
Long
object equal to the value of:getLong(nm, null)
- Parameters:
nm
- property name.- Returns:
- the
Long
value of the property. - See Also:
System.getProperty(java.lang.String)
,System.getProperty(java.lang.String, java.lang.String)
-
getLong
public static Long getLong(String nm, long val)
Determines thelong
value of the system property with the specified name.The first argument is treated as the name of a system property. System properties are accessible through the
System.getProperty(java.lang.String)
method. The string value of this property is then interpreted as along
value and aLong
object representing this value is returned. Details of possible numeric formats can be found with the definition ofgetProperty
.The second argument is the default value. A
Long
object that represents the value of the second argument is returned if there is no property of the specified name, if the property does not have the correct numeric format, or if the specified name is empty or null.In other words, this method returns a
Long
object equal to the value of:getLong(nm, new Long(val))
to avoid the unnecessary allocation of aLong result = getLong(nm, null); return (result == null) ? new Long(val) : result;
Long
object when the default value is not needed.- Parameters:
nm
- property name.val
- default value.- Returns:
- the
Long
value of the property. - See Also:
System.getProperty(java.lang.String)
,System.getProperty(java.lang.String, java.lang.String)
-
getLong
public static Long getLong(String nm, Long val)
Returns thelong
value of the system property with the specified name. The first argument is treated as the name of a system property. System properties are accessible through theSystem.getProperty(java.lang.String)
method. The string value of this property is then interpreted as along
value, as per theLong.decode
method, and aLong
object representing this value is returned.- If the property value begins with the two ASCII characters
0x
or the ASCII character#
, not followed by a minus sign, then the rest of it is parsed as a hexadecimal integer exactly as for the methodvalueOf(java.lang.String, int)
with radix 16. - If the property value begins with the ASCII character
0
followed by another character, it is parsed as an octal integer exactly as by the methodvalueOf(java.lang.String, int)
with radix 8. - Otherwise the property value is parsed as a decimal
integer exactly as by the method
valueOf(java.lang.String, int)
with radix 10.
Note that, in every case, neither
L
('\u004C'
) norl
('\u006C'
) is permitted to appear at the end of the property value as a type indicator, as would be permitted in Java programming language source code.The second argument is the default value. The default value is returned if there is no property of the specified name, if the property does not have the correct numeric format, or if the specified name is empty or
null
.- Parameters:
nm
- property name.val
- default value.- Returns:
- the
Long
value of the property. - See Also:
System.getProperty(java.lang.String)
,System.getProperty(java.lang.String, java.lang.String)
,decode(java.lang.String)
- If the property value begins with the two ASCII characters
-
compareTo
public int compareTo(Long anotherLong)
Compares twoLong
objects numerically.- Specified by:
compareTo
in interfaceComparable<Long>
- Parameters:
anotherLong
- theLong
to be compared.- Returns:
- the value
0
if thisLong
is equal to the argumentLong
; a value less than0
if thisLong
is numerically less than the argumentLong
; and a value greater than0
if thisLong
is numerically greater than the argumentLong
(signed comparison). - Since:
- 1.2
-
compare
public static int compare(long x, long y)
Compares twolong
values numerically. The value returned is identical to what would be returned by:Long.valueOf(x).compareTo(Long.valueOf(y))
- Parameters:
x
- the firstlong
to comparey
- the secondlong
to compare- Returns:
- the value
0
ifx == y
; a value less than0
ifx < y
; and a value greater than0
ifx > y
- Since:
- 1.7
-
highestOneBit
public static long highestOneBit(long i)
Returns along
value with at most a single one-bit, in the position of the highest-order ("leftmost") one-bit in the specifiedlong
value. Returns zero if the specified value has no one-bits in its two's complement binary representation, that is, if it is equal to zero.- Returns:
- a
long
value with a single one-bit, in the position of the highest-order one-bit in the specified value, or zero if the specified value is itself equal to zero. - Since:
- 1.5
-
lowestOneBit
public static long lowestOneBit(long i)
Returns along
value with at most a single one-bit, in the position of the lowest-order ("rightmost") one-bit in the specifiedlong
value. Returns zero if the specified value has no one-bits in its two's complement binary representation, that is, if it is equal to zero.- Returns:
- a
long
value with a single one-bit, in the position of the lowest-order one-bit in the specified value, or zero if the specified value is itself equal to zero. - Since:
- 1.5
-
numberOfLeadingZeros
public static int numberOfLeadingZeros(long i)
Returns the number of zero bits preceding the highest-order ("leftmost") one-bit in the two's complement binary representation of the specifiedlong
value. Returns 64 if the specified value has no one-bits in its two's complement representation, in other words if it is equal to zero.Note that this method is closely related to the logarithm base 2. For all positive
long
values x:- floor(log2(x)) =
63 - numberOfLeadingZeros(x)
- ceil(log2(x)) =
64 - numberOfLeadingZeros(x - 1)
- Returns:
- the number of zero bits preceding the highest-order
("leftmost") one-bit in the two's complement binary representation
of the specified
long
value, or 64 if the value is equal to zero. - Since:
- 1.5
- floor(log2(x)) =
-
numberOfTrailingZeros
public static int numberOfTrailingZeros(long i)
Returns the number of zero bits following the lowest-order ("rightmost") one-bit in the two's complement binary representation of the specifiedlong
value. Returns 64 if the specified value has no one-bits in its two's complement representation, in other words if it is equal to zero.- Returns:
- the number of zero bits following the lowest-order ("rightmost")
one-bit in the two's complement binary representation of the
specified
long
value, or 64 if the value is equal to zero. - Since:
- 1.5
-
bitCount
public static int bitCount(long i)
Returns the number of one-bits in the two's complement binary representation of the specifiedlong
value. This function is sometimes referred to as the population count.- Returns:
- the number of one-bits in the two's complement binary
representation of the specified
long
value. - Since:
- 1.5
-
rotateLeft
public static long rotateLeft(long i, int distance)
Returns the value obtained by rotating the two's complement binary representation of the specifiedlong
value left by the specified number of bits. (Bits shifted out of the left hand, or high-order, side reenter on the right, or low-order.)Note that left rotation with a negative distance is equivalent to right rotation:
rotateLeft(val, -distance) == rotateRight(val, distance)
. Note also that rotation by any multiple of 64 is a no-op, so all but the last six bits of the rotation distance can be ignored, even if the distance is negative:rotateLeft(val, distance) == rotateLeft(val, distance & 0x3F)
.- Returns:
- the value obtained by rotating the two's complement binary
representation of the specified
long
value left by the specified number of bits. - Since:
- 1.5
-
rotateRight
public static long rotateRight(long i, int distance)
Returns the value obtained by rotating the two's complement binary representation of the specifiedlong
value right by the specified number of bits. (Bits shifted out of the right hand, or low-order, side reenter on the left, or high-order.)Note that right rotation with a negative distance is equivalent to left rotation:
rotateRight(val, -distance) == rotateLeft(val, distance)
. Note also that rotation by any multiple of 64 is a no-op, so all but the last six bits of the rotation distance can be ignored, even if the distance is negative:rotateRight(val, distance) == rotateRight(val, distance & 0x3F)
.- Returns:
- the value obtained by rotating the two's complement binary
representation of the specified
long
value right by the specified number of bits. - Since:
- 1.5
-
reverse
public static long reverse(long i)
Returns the value obtained by reversing the order of the bits in the two's complement binary representation of the specifiedlong
value.- Returns:
- the value obtained by reversing order of the bits in the
specified
long
value. - Since:
- 1.5
-
signum
public static int signum(long i)
Returns the signum function of the specifiedlong
value. (The return value is -1 if the specified value is negative; 0 if the specified value is zero; and 1 if the specified value is positive.)- Returns:
- the signum function of the specified
long
value. - Since:
- 1.5
-
reverseBytes
public static long reverseBytes(long i)
Returns the value obtained by reversing the order of the bytes in the two's complement representation of the specifiedlong
value.- Returns:
- the value obtained by reversing the bytes in the specified
long
value. - Since:
- 1.5
-
-
Traduction non disponible
Les API Java ne sont pas encore traduites en français sur l'infobrol. Seule la version anglaise est disponible pour l'instant.
Version en cache
21/11/2024 21:54:27 Cette version de la page est en cache (à la date du 21/11/2024 21:54:27) afin d'accélérer le traitement. Vous pouvez activer le mode utilisateur dans le menu en haut pour afficher la dernère version de la page.Document créé le 16/09/2006, dernière modification le 04/03/2020
Source du document imprimé : https://www.gaudry.be/java-api-rf-java/lang/long.html
L'infobrol est un site personnel dont le contenu n'engage que moi. Le texte est mis à disposition sous licence CreativeCommons(BY-NC-SA). Plus d'info sur les conditions d'utilisation et sur l'auteur.
Références
Ces références et liens indiquent des documents consultés lors de la rédaction de cette page, ou qui peuvent apporter un complément d'information, mais les auteurs de ces sources ne peuvent être tenus responsables du contenu de cette page.
L'auteur de ce site est seul responsable de la manière dont sont présentés ici les différents concepts, et des libertés qui sont prises avec les ouvrages de référence. N'oubliez pas que vous devez croiser les informations de sources multiples afin de diminuer les risques d'erreurs.