Example usage for java.math BigInteger subtract

Introduction

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

Prototype

public BigInteger subtract(BigInteger val)

Source Link

Document

Returns a BigInteger whose value is (this - val) .

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.subtract(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);//  www.ja v  a 2s .c  om

    bi1 = bi1.subtract(bi2);

    bi1 = bi1.divide(bi2);

    bi1 = bi1.negate();

}

From source file:Main.java

public static void main(String[] args) {
    BigInteger bigInteger = new BigInteger("2000000000000");// uper limit
    BigInteger min = new BigInteger("1000000000");// lower limit
    BigInteger bigInteger1 = bigInteger.subtract(min);
    Random rnd = new Random();
    int maxNumBitLength = bigInteger.bitLength();

    BigInteger aRandomBigInt;//from  w  w w  .  ja v a 2s .  c om

    aRandomBigInt = new BigInteger(maxNumBitLength, rnd);
    if (aRandomBigInt.compareTo(min) < 0)
        aRandomBigInt = aRandomBigInt.add(min);
    if (aRandomBigInt.compareTo(bigInteger) >= 0)
        aRandomBigInt = aRandomBigInt.mod(bigInteger1).add(min);

    System.out.println(aRandomBigInt);
}

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   w w  w  .j  a  v a2  s .  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);//ww  w  .  j  a  va 2 s  .  c o 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:Main.java

static BigInteger addmod(BigInteger a, BigInteger b, BigInteger p) {
    if (p.subtract(b).compareTo(a) > 0) {
        return a.add(b);
    } else {// w w  w.java2  s  .c o  m
        return a.add(b).subtract(p);
    }
}

From source file:Main.java

/**
 * Symmetric encryption of private key x
 * @param u//from   ww  w .  j av a2 s. 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 modNear(BigInteger a, BigInteger b) {
    BigInteger res = a.mod(b);

    if (res.compareTo(b.shiftRight(1)) == 1)
        res = res.subtract(b);

    return res;/*  w  w  w  .j  av a  2 s .c  o m*/
}

From source file:Main.java

public static boolean isGoodGaAndGb(BigInteger g_a, BigInteger p) {
    return !(g_a.compareTo(BigInteger.valueOf(1)) != 1
            || g_a.compareTo(p.subtract(BigInteger.valueOf(1))) != -1);
}

From source file:Main.java

public static void main() {
    BigInteger bi1 = new BigInteger("123");
    BigInteger bi2 = new BigInteger("-123");

    // assign difference of bi1 and bi2 to bi3
    BigInteger bi3 = bi1.subtract(bi2);

    System.out.println(bi3);/*ww w  .j ava2  s . c om*/
}