Java java.lang Integer fields, constructors, methods, implement or subclass

Introduction

In this page you can find the methods, fields and constructors for java.lang Integer.

The text is from its open source code.

Field

int	MIN_VALUE A constant holding the minimum value an int can have, -2³¹.
int	MAX_VALUE A constant holding the maximum value an int can have, 2³¹-1.
Class	TYPE The Class instance representing the primitive type int .
int	SIZE The number of bits used to represent an int value in two's complement binary form.
int	BYTES The number of bytes used to represent an int value in two's complement binary form.

Constructor

	Integer(int value) Constructs a newly allocated Integer object that represents the specified int value.
	Integer(String s) Constructs a newly allocated Integer object that represents the int value indicated by the String parameter.

Method

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.
int	compare(int x, int y) Compares two int values numerically.
int	compareTo(Integer anotherInteger) Compares two Integer objects numerically.
Integer	decode(String nm) Decodes a String into an Integer .
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 obj) Compares this object to the specified object.
float	floatValue() Returns the value of this Integer as a float after a widening primitive conversion.
Class	getClass() Returns the runtime class of this Object .
Integer	getInteger(String nm) Determines the integer value of the system property with the specified name.
Integer	getInteger(String nm, int val) Determines the integer value of the system property with the specified name.
Integer	getInteger(String nm, Integer val) Returns the integer value of the system property with the specified name.
int	hashCode() Returns a hash code for this Integer .
int	hashCode(int value) Returns a hash code for an int value; compatible with Integer.hashCode() .
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.
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.
int	max(int a, int b) Returns the greater of two int values as if by calling Math#max(int,int) Math.max .
int	min(int a, int b) Returns the smaller of two int values as if by calling Math#min(int,int) Math.min .
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.
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.
int	parseInt(String s) Parses the string argument as a signed decimal integer.
int	parseInt(String s, int radix) Parses the string argument as a signed integer in the radix specified by the second argument.
int	parseUnsignedInt(String s, int radix) Parses the string argument as an unsigned integer in the radix specified by the second argument.
int	parseUnsignedInt(String s) Parses the string argument as an unsigned decimal integer.
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.
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.
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.
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.
int	signum(int i) Returns the signum function of the specified int value.
int	sum(int a, int b) Adds two integers together as per the + operator.
String	toBinaryString(int i) Returns a string representation of the integer argument as an unsigned integer in base 2.
String	toHexString(int i) Returns a string representation of the integer argument as an unsigned integer in base 16.
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.
String	toString(int i) Returns a String object representing the specified integer.
String	toString(int i, int radix) Returns a string representation of the first argument in the radix specified by the second argument.
long	toUnsignedLong(int x) Converts the argument to a long by an unsigned conversion.
String	toUnsignedString(int i) Returns a string representation of the argument as an unsigned decimal value.
Integer	valueOf(String s) Returns an Integer object holding the value of the specified String .
Integer	valueOf(int i) Returns an Integer instance representing the specified int value.
Integer	valueOf(String s, int radix) Returns an Integer object holding the value extracted from the specified String when parsed with the radix given by the second argument.