public final class Integer extends Numberimplements Comparable <Integer >
Integer
class wraps a value of the primitive type
int
in an object. An object of type
Integer
contains a single field whose type is
int
.
In addition, this class provides several methods for converting an int
to a String
and a String
to an int
, as well as other constants and methods useful when dealing with an int
.
Implementation note: The implementations of the "bit twiddling" methods (such as highestOneBit
and numberOfTrailingZeros
) are based on material from Henry S. Warren, Jr.'s Hacker's Delight, (Addison Wesley, 2002).
Modifier and Type | Field and Description |
---|---|
static int |
BYTES
The number of bytes used to represent a
int value in two's complement binary form.
|
static int |
MAX_VALUE
A constant holding the maximum value an
int can have, 2
31-1.
|
static int |
MIN_VALUE
A constant holding the minimum value an
int can have, -2
31.
|
static int |
SIZE
The number of bits used to represent an
int value in two's complement binary form.
|
static Class |
TYPE
The
Class instance representing the primitive type
int .
|
Constructor and Description |
---|
Integer(int value)
Constructs a newly allocated
Integer object that represents the specified
int value.
|
Integer(String
Constructs a newly allocated
Integer object that represents the
int value indicated by the
String parameter.
|
Modifier and Type | Method and Description |
---|---|
static int |
bitCount(int i)
Returns the number of one-bits in the two's complement binary representation of the specified
int value.
|
byte |
byteValue()
Returns the value of this
Integer as a
byte after a narrowing primitive conversion.
|
static int |
compare(int x, int y)
Compares two
int values numerically.
|
int |
compareTo(Integer
Compares two
Integer objects numerically.
|
static int |
compareUnsigned(int x, int y)
Compares two
int values numerically treating the values as unsigned.
|
static Integer |
decode(String
Decodes a
String into an
Integer .
|
static int |
divideUnsigned(int dividend, int divisor)
Returns the unsigned quotient of dividing the first argument by the second where each argument and the result is interpreted as an unsigned value.
|
double |
doubleValue()
Returns the value of this
Integer as a
double after a widening primitive conversion.
|
boolean |
equals(Object
Compares this object to the specified object.
|
float |
floatValue()
Returns the value of this
Integer as a
float after a widening primitive conversion.
|
static Integer |
getInteger(String
Determines the integer value of the system property with the specified name.
|
static Integer |
getInteger(String
Determines the integer value of the system property with the specified name.
|
static Integer |
getInteger(String
Returns the integer value of the system property with the specified name.
|
int |
hashCode()
Returns a hash code for this
Integer .
|
static int |
hashCode(int value)
Returns a hash code for a
int value; compatible with
Integer.hashCode() .
|
static int |
highestOneBit(int i)
Returns an
int value with at most a single one-bit, in the position of the highest-order ("leftmost") one-bit in the specified
int value.
|
int |
intValue()
Returns the value of this
Integer as an
int .
|
long |
longValue()
Returns the value of this
Integer as a
long after a widening primitive conversion.
|
static int |
lowestOneBit(int i)
Returns an
int value with at most a single one-bit, in the position of the lowest-order ("rightmost") one-bit in the specified
int value.
|
static int |
max(int a, int b)
Returns the greater of two
int values as if by calling
Math.max .
|
static int |
min(int a, int b)
Returns the smaller of two
int values as if by calling
Math.min .
|
static int |
numberOfLeadingZeros(int i)
Returns the number of zero bits preceding the highest-order ("leftmost") one-bit in the two's complement binary representation of the specified
int value.
|
static int |
numberOfTrailingZeros(int i)
Returns the number of zero bits following the lowest-order ("rightmost") one-bit in the two's complement binary representation of the specified
int value.
|
static int |
parseInt(String
Parses the string argument as a signed decimal integer.
|
static int |
parseInt(String
Parses the string argument as a signed integer in the radix specified by the second argument.
|
static int |
parseUnsignedInt(String
Parses the string argument as an unsigned decimal integer.
|
static int |
parseUnsignedInt(String
Parses the string argument as an unsigned integer in the radix specified by the second argument.
|
static int |
remainderUnsigned(int dividend, int divisor)
Returns the unsigned remainder from dividing the first argument by the second where each argument and the result is interpreted as an unsigned value.
|
static int |
reverse(int i)
Returns the value obtained by reversing the order of the bits in the two's complement binary representation of the specified
int value.
|
static int |
reverseBytes(int i)
Returns the value obtained by reversing the order of the bytes in the two's complement representation of the specified
int value.
|
static int |
rotateLeft(int i, int distance)
Returns the value obtained by rotating the two's complement binary representation of the specified
int value left by the specified number of bits.
|
static int |
rotateRight(int i, int distance)
Returns the value obtained by rotating the two's complement binary representation of the specified
int value right by the specified number of bits.
|
short |
shortValue()
Returns the value of this
Integer as a
short after a narrowing primitive conversion.
|
static int |
signum(int i)
Returns the signum function of the specified
int value.
|
static int |
sum(int a, int b)
Adds two integers together as per the + operator.
|
static String |
toBinaryString(int i)
Returns a string representation of the integer argument as an unsigned integer in base 2.
|
static String |
toHexString(int i)
Returns a string representation of the integer argument as an unsigned integer in base 16.
|
static String |
toOctalString(int i)
Returns a string representation of the integer argument as an unsigned integer in base 8.
|
String |
toString()
Returns a
String object representing this
Integer 's value.
|
static String |
toString(int i)
Returns a
String object representing the specified integer.
|
static String |
toString(int i, int radix)
Returns a string representation of the first argument in the radix specified by the second argument.
|
static long |
toUnsignedLong(int x)
Converts the argument to a
long by an unsigned conversion.
|
static String |
toUnsignedString(int i)
Returns a string representation of the argument as an unsigned decimal value.
|
static String |
toUnsignedString(int i, int radix)
Returns a string representation of the first argument as an unsigned integer value in the radix specified by the second argument.
|
static Integer |
valueOf(int i)
Returns an
Integer instance representing the specified
int value.
|
static Integer |
valueOf(String
Returns an
Integer object holding the value of the specified
String .
|
static Integer |
valueOf(String
Returns an
Integer object holding the value extracted from the specified
String when parsed with the radix given by the second argument.
|
@Native public static final int MIN_VALUE
int
can have, -2
31.
@Native public static final int MAX_VALUE
int
can have, 2
31-1.
public static final Class<Integer > TYPE
Class
instance representing the primitive type
int
.
@Native public static final int SIZE
int
value in two's complement binary form.
public static final int BYTES
int
value in two's complement binary form.
public Integer(int value)
Integer
object that represents the specified
int
value.
value
- the value to be represented by the
Integer
object.
public Integer(Strings) throws NumberFormatException
Integer
object that represents the
int
value indicated by the
String
parameter. The string is converted to an
int
value in exactly the manner used by the
parseInt
method for radix 10.
s
- the
String
to be converted to an
Integer
.
NumberFormatException
- if the
String
does not contain a parsable integer.
parseInt(java.lang.String, int)
public static StringtoString(int i, int radix)
If the radix is smaller than Character.MIN_RADIX
or larger than Character.MAX_RADIX
, then the radix 10
is used instead.
If the first argument is negative, the first element of the result is the ASCII minus character '-'
('\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
These are
'\u0030'
through
'\u0039'
and
'\u0061'
through
'\u007A'
. If
radix
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) are
0123456789abcdef
. If uppercase letters are desired, the
String.toUpperCase()
method may be called on the result:
Integer.toString(n, 16).toUpperCase()
i
- an integer to be converted to a string.
radix
- the radix to use in the string representation.
Character.MAX_RADIX
,
Character.MIN_RADIX
public static StringtoUnsignedString(int i, int radix)
If the radix is smaller than Character.MIN_RADIX
or larger than Character.MAX_RADIX
, then the radix 10
is used instead.
Note that since the first argument is treated as an unsigned value, no leading sign character is printed.
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 behavior of radixes and the characters used as digits are the same as toString
.
i
- an integer to be converted to an unsigned string.
radix
- the radix to use in the string representation.
toString(int, int)
public static StringtoHexString(int i)
The unsigned integer value is the argument plus 232 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 leading 0
s.
The value of the argument can be recovered from the returned string s
by calling Integer.parseUnsignedInt(s, 16)
.
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
These are the characters
'\u0030'
through
'\u0039'
and
'\u0061'
through
'\u0066'
. If uppercase letters are desired, the
String.toUpperCase()
method may be called on the result:
Integer.toHexString(n).toUpperCase()
i
- an integer to be converted to a string.
parseUnsignedInt(String, int)
,
toUnsignedString(int, int)
public static StringtoOctalString(int i)
The unsigned integer value is the argument plus 232 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 leading 0
s.
The value of the argument can be recovered from the returned string s
by calling Integer.parseUnsignedInt(s, 8)
.
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
These are the characters
'\u0030'
through
'\u0037'
.
i
- an integer to be converted to a string.
parseUnsignedInt(String, int)
,
toUnsignedString(int, int)
public static StringtoBinaryString(int i)
The unsigned integer value is the argument plus 232 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 leading 0
s.
The value of the argument can be recovered from the returned string s
by calling Integer.parseUnsignedInt(s, 2)
.
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.
i
- an integer to be converted to a string.
parseUnsignedInt(String, int)
,
toUnsignedString(int, int)
public static StringtoString(int i)
String
object representing the specified integer. The argument is converted to signed decimal representation and returned as a string, exactly as if the argument and radix 10 were given as arguments to the
toString(int, int)
method.
i
- an integer to be converted.
public static StringtoUnsignedString(int i)
toUnsignedString(int, int)
method.
i
- an integer to be converted to an unsigned string.
toUnsignedString(int, int)
public static int parseInt(Strings, int radix) throws NumberFormatException
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 integer 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. int
. Examples:
parseInt("0", 10) returns 0 parseInt("473", 10) returns 473 parseInt("+42", 10) returns 42 parseInt("-0", 10) returns 0 parseInt("-FF", 16) returns -255 parseInt("1100110", 2) returns 102 parseInt("2147483647", 10) returns 2147483647 parseInt("-2147483648", 10) returns -2147483648 parseInt("2147483648", 10) throws a NumberFormatException parseInt("99", 8) throws a NumberFormatException parseInt("Kona", 10) throws a NumberFormatException parseInt("Kona", 27) returns 411787
s
- the
String
containing the integer representation to be parsed
radix
- the radix to be used while parsing
s
.
NumberFormatException
- if the
String
does not contain a parsable
int
.
public static int parseInt(Strings) throws NumberFormatException
'-'
(
'\u002D'
) to indicate a negative value or an ASCII plus sign
'+'
(
'\u002B'
) to indicate a positive value. The resulting integer value is returned, exactly as if the argument and the radix 10 were given as arguments to the
parseInt(java.lang.String, int)
method.
s
- a
String
containing the
int
representation to be parsed
NumberFormatException
- if the string does not contain a parsable integer.
public static int parseUnsignedInt(Strings, int radix) throws NumberFormatException
MAX_VALUE
. 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 plus sign
'+'
(
'\u002B'
). The resulting integer 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
. '+'
('\u002B'
) provided that the string is longer than length 1. int
, 232-1. s
- the
String
containing the unsigned integer representation to be parsed
radix
- the radix to be used while parsing
s
.
NumberFormatException
- if the
String
does not contain a parsable
int
.
public static int parseUnsignedInt(Strings) throws NumberFormatException
'+'
(
'\u002B'
). The resulting integer value is returned, exactly as if the argument and the radix 10 were given as arguments to the
parseUnsignedInt(java.lang.String, int)
method.
s
- a
String
containing the unsigned
int
representation to be parsed
NumberFormatException
- if the string does not contain a parsable unsigned integer.
public static IntegervalueOf(String s, int radix) throws NumberFormatException
Integer
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 integer in the radix specified by the second argument, exactly as if the arguments were given to the
parseInt(java.lang.String, int)
method. The result is an
Integer
object that represents the integer value specified by the string.
In other words, this method returns an Integer
object equal to the value of:
new Integer(Integer.parseInt(s, radix))
s
- the string to be parsed.
radix
- the radix to be used in interpreting
s
Integer
object holding the value represented by the string argument in the specified radix.
NumberFormatException
- if the
String
does not contain a parsable
int
.
public static IntegervalueOf(String s) throws NumberFormatException
Integer
object holding the value of the specified
String
. The argument is interpreted as representing a signed decimal integer, exactly as if the argument were given to the
parseInt(java.lang.String)
method. The result is an
Integer
object that represents the integer value specified by the string.
In other words, this method returns an Integer
object equal to the value of:
new Integer(Integer.parseInt(s))
s
- the string to be parsed.
Integer
object holding the value represented by the string argument.
NumberFormatException
- if the string cannot be parsed as an integer.
public static IntegervalueOf(int i)
Integer
instance representing the specified
int
value. If a new
Integer
instance is not required, this method should generally be used in preference to the constructor
Integer(int)
, 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.
i
- an
int
value.
Integer
instance representing
i
.
public byte byteValue()
Integer
as a
byte
after a narrowing primitive conversion.
public short shortValue()
Integer
as a
short
after a narrowing primitive conversion.
shortValue
in class
Number
short
.
public int intValue()
Integer
as an
int
.
public long longValue()
Integer
as a
long
after a widening primitive conversion.
longValue
in class
Number
long
.
toUnsignedLong(int)
public float floatValue()
Integer
as a
float
after a widening primitive conversion.
floatValue
in class
Number
float
.
public double doubleValue()
Integer
as a
double
after a widening primitive conversion.
doubleValue
in class
Number
double
.
public StringtoString()
String
object representing this
Integer
's value. The value is converted to signed decimal representation and returned as a string, exactly as if the integer value were given as an argument to the
toString(int)
method.
public int hashCode()
Integer
.
hashCode
in class
Object
int
value represented by this
Integer
object.
Object.equals(java.lang.Object)
,
System.identityHashCode(java.lang.Object)
public static int hashCode(int value)
int
value; compatible with
Integer.hashCode()
.
value
- the value to hash
int
value.
public boolean equals(Objectobj)
true
if and only if the argument is not
null
and is an
Integer
object that contains the same
int
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()
,
HashMap
public static IntegergetInteger(String nm)
The first argument is treated as the name of a system property. System properties are accessible through the System
method. The string value of this property is then interpreted as an integer value using the grammar supported by decode
and an Integer
object representing this value is returned.
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, then null
is returned.
In other words, this method returns an Integer
object equal to the value of:
getInteger(nm, null)
nm
- property name.
Integer
value of the property.
SecurityException
- for the same reasons as
System.getProperty
System.getProperty(java.lang.String)
,
System.getProperty(java.lang.String, java.lang.String)
public static IntegergetInteger(String nm, int val)
The first argument is treated as the name of a system property. System properties are accessible through the System
method. The string value of this property is then interpreted as an integer value using the grammar supported by decode
and an Integer
object representing this value is returned.
The second argument is the default value. An Integer
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 an Integer
object equal to the value of:
getInteger(nm, new Integer(val))
but in practice it may be implemented in a manner such as:
to avoid the unnecessary allocation of anInteger result = getInteger(nm, null); return (result == null) ? new Integer(val) : result;
Integer
object when the default value is not needed.
nm
- property name.
val
- default value.
Integer
value of the property.
SecurityException
- for the same reasons as
System.getProperty
System.getProperty(java.lang.String)
,
System.getProperty(java.lang.String, java.lang.String)
public static IntegergetInteger(String nm, Integer val)
System.getProperty(java.lang.String)
method. The string value of this property is then interpreted as an integer value, as per the
decode
method, and an
Integer
object representing this value is returned; in summary:
0x
or the ASCII character #
, not followed by a minus sign, then the rest of it is parsed as a hexadecimal integer exactly as by the method valueOf(java.lang.String, int)
with radix 16. 0
followed by another character, it is parsed as an octal integer exactly as by the method valueOf(java.lang.String, int)
with radix 8. valueOf(java.lang.String, int)
with radix 10. 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
.
nm
- property name.
val
- default value.
Integer
value of the property.
SecurityException
- for the same reasons as
System.getProperty
System.getProperty(java.lang.String)
,
System.getProperty(java.lang.String, java.lang.String)
public static Integerdecode(String nm) throws NumberFormatException
String
into an
Integer
. 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 Integer.parseInt
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.
Integer
object holding the
int
value represented by
nm
NumberFormatException
- if the
String
does not contain a parsable integer.
parseInt(java.lang.String, int)
public int compareTo(IntegeranotherInteger)
Integer
objects numerically.
compareTo
in interface
Comparable<Integer>
anotherInteger
- the
Integer
to be compared.
0
if this
Integer
is equal to the argument
Integer
; a value less than
0
if this
Integer
is numerically less than the argument
Integer
; and a value greater than
0
if this
Integer
is numerically greater than the argument
Integer
(signed comparison).
public static int compare(int x, int y)
int
values numerically. The value returned is identical to what would be returned by:
Integer.valueOf(x).compareTo(Integer.valueOf(y))
x
- the first
int
to compare
y
- the second
int
to compare
0
if
x == y
; a value less than
0
if
x < y
; and a value greater than
0
if
x > y
public static int compareUnsigned(int x, int y)
int
values numerically treating the values as unsigned.
x
- the first
int
to compare
y
- the second
int
to compare
0
if
x == y
; a value less than
0
if
x < y
as unsigned values; and a value greater than
0
if
x > y
as unsigned values
public static long toUnsignedLong(int x)
long
by an unsigned conversion. In an unsigned conversion to a
long
, the high-order 32 bits of the
long
are zero and the low-order 32 bits are equal to the bits of the integer argument. Consequently, zero and positive
int
values are mapped to a numerically equal
long
value and negative
int
values are mapped to a
long
value equal to the input plus 2
32.
x
- the value to convert to an unsigned
long
long
by an unsigned conversion
public static int divideUnsigned(int dividend, int divisor)
Note that in two's complement arithmetic, the three other basic arithmetic operations of add, subtract, and multiply are bit-wise identical if the two operands are regarded as both being signed or both being unsigned. Therefore separate addUnsigned
, etc. methods are not provided.
dividend
- the value to be divided
divisor
- the value doing the dividing
remainderUnsigned(int, int)
public static int remainderUnsigned(int dividend, int divisor)
dividend
- the value to be divided
divisor
- the value doing the dividing
divideUnsigned(int, int)
public static int highestOneBit(int i)
int
value with at most a single one-bit, in the position of the highest-order ("leftmost") one-bit in the specified
int
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.
i
- the value whose highest one bit is to be computed
int
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.
public static int lowestOneBit(int i)
int
value with at most a single one-bit, in the position of the lowest-order ("rightmost") one-bit in the specified
int
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.
i
- the value whose lowest one bit is to be computed
int
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.
public static int numberOfLeadingZeros(int i)
int
value. Returns 32 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 int
values x:
31 - numberOfLeadingZeros(x)
32 - numberOfLeadingZeros(x - 1)
i
- the value whose number of leading zeros is to be computed
int
value, or 32 if the value is equal to zero.
public static int numberOfTrailingZeros(int i)
int
value. Returns 32 if the specified value has no one-bits in its two's complement representation, in other words if it is equal to zero.
i
- the value whose number of trailing zeros is to be computed
int
value, or 32 if the value is equal to zero.
public static int bitCount(int i)
int
value. This function is sometimes referred to as the
population count.
i
- the value whose bits are to be counted
int
value.
public static int rotateLeft(int i, int distance)
int
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 32 is a no-op, so all but the last five bits of the rotation distance can be ignored, even if the distance is negative: rotateLeft(val, distance) == rotateLeft(val, distance & 0x1F)
.
i
- the value whose bits are to be rotated left
distance
- the number of bit positions to rotate left
int
value left by the specified number of bits.
public static int rotateRight(int i, int distance)
int
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 32 is a no-op, so all but the last five bits of the rotation distance can be ignored, even if the distance is negative: rotateRight(val, distance) == rotateRight(val, distance & 0x1F)
.
i
- the value whose bits are to be rotated right
distance
- the number of bit positions to rotate right
int
value right by the specified number of bits.
public static int reverse(int i)
int
value.
i
- the value to be reversed
int
value.
public static int signum(int i)
int
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.)
i
- the value whose signum is to be computed
int
value.
public static int reverseBytes(int i)
int
value.
i
- the value whose bytes are to be reversed
int
value.
public static int sum(int a, int b)
a
- the first operand
b
- the second operand
a
and
b
BinaryOperator
public static int max(int a, int b)
int
values as if by calling
Math.max
.
a
- the first operand
b
- the second operand
a
and
b
BinaryOperator
public static int min(int a, int b)
int
values as if by calling
Math.min
.
a
- the first operand
b
- the second operand
a
and
b
BinaryOperator