Example usage for java.math BigInteger multiply

Introduction

In this page you can find the example usage for java.math BigInteger multiply.

Prototype

BigInteger multiply(long v)

Source Link

Document

Package private methods used by BigDecimal code to multiply a BigInteger with a long.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    BigInteger bi1 = new BigInteger("1234567890123456890");
    BigInteger bi2 = BigInteger.valueOf(123L);

    bi1 = bi1.multiply(bi2);

}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    BigInteger bi1 = new BigInteger("1234567890123456890");
    BigInteger bi2 = BigInteger.valueOf(123L);

    bi1 = bi1.multiply(bi2);

    bi1 = bi1.subtract(bi2);// ww  w . j av  a 2  s.c  om

    bi1 = bi1.divide(bi2);

    bi1 = bi1.negate();

}

From source file:BigIntegerTest.java

public static void main(String[] args) {
    Scanner in = new Scanner(System.in);

    System.out.print("How many numbers do you need to draw? ");
    int k = in.nextInt();

    System.out.print("What is the highest number you can draw? ");
    int n = in.nextInt();

    /*/*from ww  w .jav  a  2s  . com*/
     * compute binomial coefficient n*(n-1)*(n-2)*...*(n-k+1)/(1*2*3*...*k)
     */

    BigInteger lotteryOdds = BigInteger.valueOf(1);

    for (int i = 1; i <= k; i++)
        lotteryOdds = lotteryOdds.multiply(BigInteger.valueOf(n - i + 1)).divide(BigInteger.valueOf(i));

    System.out.println("Your odds are 1 in " + lotteryOdds + ". Good luck!");
}

From source file:Main.java

public static void main(String[] args) {

    BigInteger bi1 = new BigInteger("7");
    BigInteger bi2 = new BigInteger("20");

    // multiply bi1 with bi2 and assign result to bi3
    BigInteger bi3 = bi1.multiply(bi2);

    System.out.println(bi3);/*from w  ww  .  j  av  a2s. co m*/
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    // Create via a string
    BigInteger bi1 = new BigInteger("1234567890123456890");

    // Create via a long
    BigInteger bi2 = BigInteger.valueOf(123L);

    bi1 = bi1.add(bi2);//from ww w.ja va 2s.  c o m
    bi1 = bi1.multiply(bi2);
    bi1 = bi1.subtract(bi2);
    bi1 = bi1.divide(bi2);
    bi1 = bi1.negate();
    int exponent = 2;
    bi1 = bi1.pow(exponent);

}

From source file:Main.java

public static void main(String[] args) {
    BigInteger numberA = new BigInteger("98765432123456789");
    BigInteger numberB = BigInteger.TEN;

    numberA = numberA.add(numberB);//  w ww. j a va 2 s. co  m
    System.out.println("numberA = " + numberA);

    numberA = numberA.multiply(numberB);
    System.out.println("numberA = " + numberA);

    numberA = numberA.subtract(numberB);
    System.out.println("numberA = " + numberA);

    numberA = numberA.divide(numberB);
    System.out.println("numberA = " + numberA);

    numberA = numberA.mod(numberB);
    System.out.println("numberA = " + numberA);

    numberA = numberA.pow(2);
    System.out.println("numberA = " + numberA);

    numberA = numberA.negate();
    System.out.println("numberA = " + numberA);
}

From source file:edu.macalester.tagrelatedness.KendallsCorrelation.java

public static void main(String args[]) {
    long tiedx = new BigInteger("1853724906736").longValue();
    long tiedy = new BigInteger("5328254589").longValue();
    long numpairs = new BigInteger("4094164093575").longValue();
    BigSquareRoot sqrt = new BigSquareRoot();
    BigInteger first = new BigInteger("" + (numpairs - tiedx));
    BigInteger second = new BigInteger("" + (numpairs - tiedy));
    BigDecimal result = sqrt.get(first.multiply(second));
    System.out.println(result.doubleValue());

}

From source file:Main.java

/**
 * Symmetric encryption of private key x
 * @param u/*  w  ww . j a  v a 2s.  c  o m*/
 * @param k
 * @param p
 * @param x
 * @return
 */
public static BigInteger getE(BigInteger u, BigInteger k, BigInteger p, BigInteger x) {
    return u.multiply(x).subtract(k).mod(p.subtract(BigInteger.ONE));
}

From source file:Main.java

public static BigInteger productOf(Collection<Integer> numbers) {
    BigInteger sum = BigInteger.ONE;
    for (Integer n : numbers) {
        sum = sum.multiply(BigInteger.valueOf(n));
    }//w ww  . java 2 s .  co  m
    return sum;
}

From source file:FactQuoter.java

/** The factorial() method, using BigIntegers cached in a ArrayList */
public static synchronized BigInteger factorial(int x) {
    if (x < 0)
        throw new IllegalArgumentException("x must be non-negative.");
    for (int size = table.size(); size <= x; size++) {
        BigInteger lastfact = (BigInteger) table.get(size - 1);
        BigInteger nextfact = lastfact.multiply(BigInteger.valueOf(size));
        table.add(nextfact);//from w w w  .  j a  v  a 2s  . co m
    }
    return (BigInteger) table.get(x);
}