Class BigInteger

java.lang.Object
com.codename1.util.BigInteger
public class BigInteger extends Object
A simplified version of big integer from the bouncy castle implementation

  • Field Details

  • Constructor Details

  • 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(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(Object val)
      Description copied from class: Object
      Indicates whether some other object is "equal to" this one. The equals method implements an equivalence relation: It is reflexive: for any reference value x, x.equals(x) should return true. It is symmetric: for any reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true. It is transitive: for any reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true. It is consistent: for any reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the object is modified. For any non-null reference value x, x.equals(null) should return false. The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any reference values x and y, this method returns true if and only if x and y refer to the same object (x==y has the value true).
      Overrides:
      equals in class Object

    • gcd

      public BigInteger gcd(BigInteger val)

    • hashCode

      public int hashCode()
      Description copied from class: Object
      Returns a hash code value for the object. This method is supported for the benefit of hashtables such as those provided by java.util.Hashtable. The general contract of hashCode is: Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application. If two objects are equal according to the equals(Object) method, then calling the hashCode method on each of the two objects must produce the same integer result. It is not required that if two objects are unequal according to the equals(java.lang.Object) method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hashtables. As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the JavaTM programming language.)
      Overrides:
      hashCode in class 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()
      Description copied from class: Object
      Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method. The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of: getClass().getName() + '@' + Integer.toHexString(hashCode())
      Overrides:
      toString in class Object

    • toString

      public String toString(int rdx)

    • getLowestSetBit

      public int getLowestSetBit()

    • testBit

      public boolean testBit(int n) throws ArithmeticException
      Throws:
      ArithmeticException