public final class Integer

The largest value of type int. The constant value of this field is 2147483647. See Also:Constant Field Values

The smallest value of type int. The constant value of this field is -2147483648. See Also:Constant Field Values

The size of an int in bytes.

The size of an int in bits.

Constructs a newly allocated Integer object that represents the primitive int argument. value - the value to be represented by the Integer.

An Integer of parseInt(s).

Returns the value of this Integer as a byte.

Returns the value of this Integer as a double.

Compares this object to the specified object. The result is true if and only if the argument is not null and is an Integer object that contains the same int value as this object.

Returns the value of this Integer as a float.

Returns a hashcode for this Integer.

Returns the value of this Integer as an int.

Returns the value of this Integer as a long.

Parses the string argument as a signed decimal integer. 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 integer value is returned, exactly as if the argument and the radix 10 were given as arguments to the method.

Parses the string argument as a signed integer 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 returns a nonnegative value), except that the first character may be an ASCII minus sign ‘-’ (’ u002d’) to indicate a negative value. The resulting integer value is returned. 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 than Character.MIN_RADIX or larger than Character.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’) provided that the string is longer than length 1. The integer value represented by the string is not a value of type int. Examples: parseInt(“0”, 10) returns 0 parseInt(“473”, 10) returns 473 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

Returns the value of this Integer as a short.

Creates a string representation of the integer argument as an unsigned integer in base 2. The unsigned integer value is the argument plus 232if the argument is negative; otherwise it is equal to the argument. This value is converted to a string of ASCII digits in binary (base2) with no extra leading 0s. 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.

Creates a string representation of the integer argument as an unsigned integer in base 16. 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 (base16) with no extra leading 0s. 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 ‘u\0039’ through ' u0066’.

Creates a string representation of the integer argument as an unsigned integer in base 8. 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 (base8) with no extra leading 0s. 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 octal digits are: 01234567 These are the characters ' u0030’ through ' u0037’.

Returns a 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 method.

Returns a new 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 method.

Creates 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 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 the 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.

Returns a new Integer object initialized to 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 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))

Returns a new Integer object initialized to the value of the specified String. 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 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))

Returns the object instance of i

Returns the value of the signum function for the specified integer.

Compares this object to the specified object to determine their relative order.

The value itself.

The number of one bits.

The highest one bit alone, or 0.

The lowest one bit alone, or 0.

The number of zero bits below the lowest one bit; 32 for zero.

The bits in reverse order.

The bytes in reverse order.

The bits rotated right by distance.

Compares the two as unsigned values.

The value as an unsigned long.

The unsigned quotient.

The unsigned remainder.

The value as an unsigned decimal string.

The value as an unsigned string in radix.

Parses an unsigned decimal int.

Parses an unsigned int in radix.

Parses s from beginIndex to endIndex as a signed int.

Parses s from beginIndex to endIndex as an unsigned int.

Decodes a decimal, 0x, 0X, # or leading-zero octal int, with an optional sign.

The system property nm as an Integer, or null.

The system property nm as an Integer, or val.

The system property nm decoded as an Integer, or val when it is unset or not a number.

The bits of i selected by mask, packed to the low end.

The low bits of i spread to the positions of the one bits of mask.