How do I convert BigInteger into another radix number?

In this example you’ll see how we can convert a java.math.BigInteger number into another radix such as binary, octal and hexadecimal.

package org.kodejava.math;

import java.math.BigInteger;

public class BigIntegerConversion {
    public static void main(String[] args) {
        BigInteger number = new BigInteger("2021");
        System.out.println("Number      = " + number);
        System.out.println("Binary      = " + number.toString(2));
        System.out.println("Octal       = " + number.toString(8));
        System.out.println("Hexadecimal = " + number.toString(16));

        number = new BigInteger("FF", 16);
        System.out.println("Number      = " + number);
        System.out.println("Number      = " + number.toString(16));
    }
}

The result of our examples:

Number      = 2021
Binary      = 11111100101
Octal       = 3745
Hexadecimal = 7e5
Number      = 255
Number      = ff

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Wayan

Founder at Kode Java

A programmer, runner and recreational diver, lives on the island of Bali, Indonesia. Programming in Java, Spring Framework, Hibernate / JPA, MySQL. To support me working on this project, buy me a cup of coffee, every little bit helps. Thank you.

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