java.math
Class BigInteger

java.lang.Object
  java.lang.Number
      java.math.BigInteger

All Implemented Interfaces:

Serializable, Comparable

public class BigInteger
extends Number
implements Comparable

See Also:

Serialized Form

Field Summary

static BigInteger	ONE
static BigInteger	ZERO

Constructor Summary

BigInteger(byte[] bval)

BigInteger(int sign, byte[] mag)

BigInteger(int bitLength, int certainty, Random rnd)

BigInteger(int numBits, Random rnd)

BigInteger(String sval)

BigInteger(String sval, int rdx)

Method Summary

BigInteger	abs()
BigInteger	add(BigInteger val)
int	bitCount()
int	bitLength()
byte	byteValue()
int	compareTo(BigInteger val)
int	compareTo(Object o)
BigInteger	divide(BigInteger val)
BigInteger[]	divideAndRemainder(BigInteger val)
double	doubleValue()
boolean	equals(Object val)
float	floatValue()
BigInteger	gcd(BigInteger val)
int	getLowestSetBit()
int	hashCode()
int	intValue()
boolean	isProbablePrime(int certainty) return whether or not a BigInteger is probably prime with a probability of 1 - (1/2)**certainty.
long	longValue()
BigInteger	max(BigInteger val)
BigInteger	min(BigInteger val)
BigInteger	mod(BigInteger m)
BigInteger	modInverse(BigInteger m)
BigInteger	modPow(BigInteger exponent, BigInteger m)
BigInteger	multiply(BigInteger val)
BigInteger	negate()
BigInteger	pow(int exp)
BigInteger	remainder(BigInteger val)
BigInteger	shiftLeft(int n)
BigInteger	shiftRight(int n)
short	shortValue()
int	signum()
BigInteger	subtract(BigInteger val)
boolean	testBit(int n)
byte[]	toByteArray()
String	toString()
String	toString(int rdx)
static BigInteger	valueOf(long val)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

ZERO

public static final BigInteger ZERO

ONE

public static final BigInteger ONE

Constructor Detail

BigInteger

public BigInteger(String sval)
           throws NumberFormatException

Throws:

NumberFormatException

BigInteger

public BigInteger(String sval,
                  int rdx)
           throws NumberFormatException

Throws:

NumberFormatException

BigInteger

public BigInteger(byte[] bval)
           throws NumberFormatException

Throws:

NumberFormatException

BigInteger

public BigInteger(int sign,
                  byte[] mag)
           throws NumberFormatException

Throws:

NumberFormatException

BigInteger

public BigInteger(int numBits,
                  Random rnd)
           throws IllegalArgumentException

Throws:

IllegalArgumentException

BigInteger

public BigInteger(int bitLength,
                  int certainty,
                  Random rnd)
           throws ArithmeticException

Throws:

ArithmeticException

Method Detail

abs

public BigInteger abs()

add

public BigInteger add(BigInteger val)
               throws ArithmeticException

Throws:

ArithmeticException

bitCount

public int bitCount()

bitLength

public int bitLength()

compareTo

public int compareTo(Object o)

Specified by:

compareTo in interface Comparable

compareTo

public int compareTo(BigInteger val)

divide

public BigInteger divide(BigInteger val)
                  throws ArithmeticException

Throws:

ArithmeticException

divideAndRemainder

public BigInteger[] divideAndRemainder(BigInteger val)
                                throws ArithmeticException

Throws:

ArithmeticException

equals

public boolean equals(Object val)

Overrides:

equals in class Object

gcd

public BigInteger gcd(BigInteger val)

hashCode

public int hashCode()

Overrides:

hashCode in class Object

intValue

public int intValue()

Specified by:

intValue in class Number

shortValue

public short shortValue()

Specified by:

shortValue in class Number

byteValue

public byte byteValue()

Specified by:

byteValue in class Number

isProbablePrime

public boolean isProbablePrime(int certainty)

return whether or not a BigInteger is probably prime with a probability of 1 - (1/2)**certainty.

From Knuth Vol 2, pg 395.

longValue

public long longValue()

Specified by:

longValue in class Number

max

public BigInteger max(BigInteger val)

min

public BigInteger min(BigInteger val)

mod

public BigInteger mod(BigInteger m)
               throws ArithmeticException

Throws:

ArithmeticException

modInverse

public BigInteger modInverse(BigInteger m)
                      throws ArithmeticException

Throws:

ArithmeticException

modPow

public BigInteger modPow(BigInteger exponent,
                         BigInteger m)
                  throws ArithmeticException

Throws:

ArithmeticException

multiply

public BigInteger multiply(BigInteger val)

negate

public BigInteger negate()

pow

public BigInteger pow(int exp)
               throws ArithmeticException

Throws:

ArithmeticException

remainder

public BigInteger remainder(BigInteger val)
                     throws ArithmeticException

Throws:

ArithmeticException

shiftLeft

public BigInteger shiftLeft(int n)

shiftRight

public BigInteger shiftRight(int n)

signum

public int signum()

subtract

public BigInteger subtract(BigInteger val)

toByteArray

public byte[] toByteArray()

toString

public String toString()

Overrides:

toString in class Object

floatValue

public float floatValue()

Specified by:

floatValue in class Number

doubleValue

public double doubleValue()

Specified by:

doubleValue in class Number

toString

public String toString(int rdx)

valueOf

public static BigInteger valueOf(long val)

getLowestSetBit

public int getLowestSetBit()

testBit

public boolean testBit(int n)
                throws ArithmeticException

Throws:

ArithmeticException