Java examples on java.math

• How do I do math operation for BigDecimal?
• How do I convert BigInteger into another radix number?
• How do I calculate cube root and square root of a number?
• How do I get the absolute value of a number?
• How do I get the PI value?
• How do I calculate logarithm?
• How do I do math operation for BigInteger?
• How do I calculate exponential function?
• How do I round a number?
• How do I convert angle from radians to degrees?
• How do I get the minimum or maximum value between two numbers?
• How do I use trigonometric calculation methods?
• How do I raised a number to the power of n?
• How do I get signum function of a number?
• How do I calculate the length of hypotenuse?
• How do I get the exponent of exponential function?

How do I do math operation for BigInteger?

package org.kodejava.example.math;

import java.math.BigInteger;

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

        numberA = numberA.add(numberB);
        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);
    }
}

Our class result are:

numberA = 98765432123456799
numberA = 987654321234567990
numberA = 987654321234567980
numberA = 98765432123456798
numberA = 8
numberA = 64
numberA = -64