Java Convert BigInteger to BigDecimal

Tags: BigInteger BigDecimal

In this Java core tutorial we learn how to convert a java.math.BigInteger object to a java.math.BigDecimal object in Java programming language.

How to convert BigInteger to BigDecimal in Java

In Java, we can use the BigDecimal(BigInteger val) constructor to create a new BigDecimal object from a given BigInteger object as the following example Java code.

ConvertBigIntegerToBigDecimalExample1.java 

import java.math.BigDecimal;
import java.math.BigInteger;

public class ConvertBigIntegerToBigDecimalExample1 {
    public static void main(String... args) {
        BigInteger bigIntegerValue = new BigInteger("111222333444555666777888999");

        BigDecimal bigDecimalValue = new BigDecimal(bigIntegerValue);

        System.out.println("BigInteger value: " + bigIntegerValue);
        System.out.println("BigDecimal value: " + bigDecimalValue);
    }
}
The output as below. 
BigInteger value: 111222333444555666777888999
BigDecimal value: 111222333444555666777888999

Happy Coding 😊

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