Class BigInteger

java.lang.Object

com.codename1.util.BigInteger

public class BigInteger
extends java.lang.Object

A simplified version of big integer from the bouncy castle implementation

Field Summary

Fields

Modifier and Type	Field	Description
static final BigInteger	ONE
static final BigInteger	ZERO

Constructor Summary

Constructors

Constructor	Description
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

Modifier and Type	Method	Description
BigInteger	abs()
BigInteger	add(BigInteger val)
BigInteger	and(BigInteger value)
BigInteger	andNot(BigInteger value)
int	bitCount()
int	bitLength()
byte	byteValue()
BigInteger	clearBit(int n)
int	compareTo(BigInteger val)
int	compareTo(java.lang.Object o)
BigInteger	divide(BigInteger val)
BigInteger[]	divideAndRemainder(BigInteger val)
boolean	equals(java.lang.Object val)
BigInteger	flipBit(int n)
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	not()
BigInteger	or(BigInteger value)
BigInteger	pow(int exp)
static BigInteger	probablePrime(int bitLength, Random random)
BigInteger	remainder(BigInteger n)
BigInteger	setBit(int n)
BigInteger	shiftLeft(int n)
BigInteger	shiftRight(int n)
int	signum()
BigInteger	subtract(BigInteger val)
boolean	testBit(int n)
byte[]	toByteArray()
String	toString()
String	toString(int rdx)
static BigInteger	valueOf(long val)
BigInteger	xor(BigInteger val)

Methods inherited from class java.lang.Object

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

Field Details

ZERO

public static final BigInteger ZERO

ONE

public static final BigInteger ONE

Constructor Details

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 Details

probablePrime

public static BigInteger probablePrime(int bitLength,
 Random random)

valueOf

public static BigInteger valueOf(long val)

abs

public BigInteger abs()

add

public BigInteger add(BigInteger val)
               throws ArithmeticException

Throws:

ArithmeticException

and

public BigInteger and(BigInteger value)

andNot

public BigInteger andNot(BigInteger value)

bitCount

public int bitCount()

bitLength

public int bitLength()

compareTo

public int compareTo(java.lang.Object o)

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(java.lang.Object val)

Overrides:

equals in class java.lang.Object

gcd

public BigInteger gcd(BigInteger val)

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

intValue

public int intValue()

byteValue

public byte byteValue()

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()

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()

not

public BigInteger not()

pow

public BigInteger pow(int exp)
               throws ArithmeticException

Throws:

ArithmeticException

remainder

public BigInteger remainder(BigInteger n)
                     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()

xor

public BigInteger xor(BigInteger val)

or

public BigInteger or(BigInteger value)

setBit

public BigInteger setBit(int n)
                  throws ArithmeticException

Throws:

ArithmeticException

clearBit

public BigInteger clearBit(int n)
                    throws ArithmeticException

Throws:

ArithmeticException

flipBit

public BigInteger flipBit(int n)
                   throws ArithmeticException

Throws:

ArithmeticException

toString

public String toString()

Overrides:

toString in class java.lang.Object

toString

public String toString(int rdx)

getLowestSetBit

public int getLowestSetBit()

testBit

public boolean testBit(int n)
                throws ArithmeticException

Throws:

ArithmeticException