Class BigInteger

public static final BigInteger ONE

The constant one as a BigInteger.

Since:

1.2

public static final BigInteger TEN

The constant ten as a BigInteger.

Since:

1.5

public static final BigInteger ZERO

The constant zero as a BigInteger.

Since:

1.2

public BigInteger(byte[] val)

public BigInteger(int signum,
                  byte[] magnitude)

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

public BigInteger(int numBits,
                  Random rnd)

public BigInteger(String val)

public BigInteger(String val,
                  int radix)

public BigInteger abs()

public BigInteger add(BigInteger val)

public BigInteger and(BigInteger y)

Return the logical (bit-wise) "and" of two BigIntegers.

public BigInteger andNot(BigInteger val)

public int bitCount()

Count one bits in a BigInteger. If argument is negative, count zero bits instead.

public int bitLength()

Calculates ceiling(log2(this <320 ? -this : this+1)) See Common Lisp: the Language, 2nd ed, p. 361.

public BigInteger clearBit(int n)

public int compareTo(BigInteger val)

Since:

1.2

public BigInteger divide(BigInteger val)

public BigInteger[] divideAndRemainder(BigInteger val)

public double doubleValue()

Return the value of this Number as a float.

Overrides:

doubleValue in interface Number

Returns:

the double value

public boolean equals(Object obj)

Overrides:

equals in interface Object

public BigInteger flipBit(int n)

public float floatValue()

Return the value of this Number as a float.

Overrides:

floatValue in interface Number

Returns:

the float value

public BigInteger gcd(BigInteger y)

public int getLowestSetBit()

public int hashCode()

Overrides:

hashCode in interface Object

public int intValue()

Return the value of this Number as an int.

Overrides:

intValue in interface Number

Returns:

the int value

public boolean isProbablePrime(int certainty)

Returns true if this BigInteger is probably prime, false if it's definitely composite. If certainty is <= 0, true is returned.

Parameters:

certainty - a measure of the uncertainty that the caller is willing to tolerate: if the call returns true the probability that this BigInteger is prime exceeds (1 - 1/2certainty). The execution time of this method is proportional to the value of this parameter.

Returns:

true if this BigInteger is probably prime, false if it's definitely composite.

public long longValue()

Return the value of this Number as a long.

Overrides:

longValue in interface Number

Returns:

the long value

public BigInteger max(BigInteger val)

public BigInteger min(BigInteger val)

public BigInteger mod(BigInteger m)

public BigInteger modInverse(BigInteger y)

public BigInteger modPow(BigInteger exponent,
                         BigInteger m)

public BigInteger multiply(BigInteger y)

public BigInteger negate()

public BigInteger not()

Return the logical (bit-wise) negation of a BigInteger.

public BigInteger or(BigInteger y)

Return the logical (bit-wise) "(inclusive) or" of two BigIntegers.

public BigInteger pow(int exponent)

Calculate the integral power of a BigInteger.

Parameters:

exponent - the exponent (must be non-negative)

public static BigInteger probablePrime(int bitLength,
                                       Random rnd)

Return a BigInteger that is bitLength bits long with a probability <322^-100 of being composite.

Parameters:

bitLength - length in bits of resulting number

rnd - random number generator to use

Throws:

ArithmeticException - if bitLength <322

Since:

1.4

public BigInteger remainder(BigInteger val)

public BigInteger setBit(int n)

public BigInteger shiftLeft(int n)

public BigInteger shiftRight(int n)

public int signum()

public BigInteger subtract(BigInteger val)

public boolean testBit(int n)

public byte[] toByteArray()

public String toString()

Overrides:

toString in interface Object

public String toString(int radix)

public static BigInteger valueOf(long val)

Return a (possibly-shared) BigInteger with a given long value.

public BigInteger xor(BigInteger y)

Return the logical (bit-wise) "exclusive or" of two BigIntegers.