Variable-Precision Numeric Data - JAVA Programming for Engineers - page 243

Table 22-3
Methods in the BigInteger Class (continued)

RETURNS METHOD/ACTION

int bitLength()

Returns the number of bits in the minimal two's-
complement representation of this BigInteger,
excluding a sign bit

BigInteger learBit(int n)

Returns a BigInteger whose value is equivalent
to this BigIntegerwith the designated bit
cleared

int compareTo(BigInteger val)

Compares this BigInteger with the specified
BigInteger

int compareTo(Object o)

Compares this BigInteger with the specified
object

BigInteger divide(BigInteger val)

Returns a BigInteger whose value is (this / val)

BigInteger[] divideAndRemainder(BigInteger val)

Returns an array of two BigIntegers containing
(this / val) followed by (this % val)

Double doubleValue()

Converts this BigInteger to a double

boolean equals(Object x)

Compares this BigInteger with the specified
Object forequality

BigInteger flipBit(int n)

Returns a BigInteger whose value is equivalent
to this BigIntegerwith the designated bit flipped

Float floatValue()

Converts this BigInteger to a float

BigInteger gcd(BigInteger val)

Returns a BigInteger whose value is the greatest
common divisorof abs(this) and abs(val)

int getLowestSetBit()

Returns the index of the rightmost (lowest-order)
one bit in this BigInteger(the numberof zero
bits to the right of the rightmost one bit)

int hashCode()

Returns the hash code for this BigInteger

Int intValue()

Converts this BigInteger to an int

boolean isProbablePrime(int certainty)

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

long longValue()

Converts this BigInteger to a long

(continues)