Convert BigInteger to BigDecimal in Java [2 ways]

In this post, I will be sharing how to convert BigInteger to BigDecimal in Java. I have already shared how to convert Integer to BigDecimal in Java. Let's dive deep into the topic:

Read Also: Convert String to BigDecimal in Java

Convert BigInteger to BigDecimal in Java

1. Using BigDecimal's class constructor [Recommended]

You can easily convert BigInteger to BigDecimal using BigDecimal's class constructor.

Syntax:

new BigDecimal(BigInteger val)
You can find the code below to convert BigInteger to BigDecimal in Java:

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

public class BigIntegerToBigDecimal {
    public static void main(String args[]) {
      BigInteger bigInteger = new BigInteger("100000");
      // Converting BigInteger to BigDecimal 
      BigDecimal bigDecimal = new BigDecimal(bigInteger);
      System.out.println(bigDecimal);
    }
}

Output:
100000

2. Using another BigDecimal's class constructor

Syntax:

new BigDecimal(BigInteger unscaledVal, int scale);
The above BigDecimal's class constructor translates a BigInteger unscaled value and an int scale into a BigDecimal.

Note: If you are using this constructor then keep the scale value to 0 as shown in the code below.

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

public class BigIntegerToBigDecimalTwo {
    public static void main(String args[]) {
      BigInteger bigInteger = new BigInteger("100");
      // Converting BigInteger to BigDecimal 
      BigDecimal bigDecimal = new BigDecimal(bigInteger, 0);
      System.out.println(bigDecimal);
    }
}

Output:
100

That's all for today, please mention in the comments in case you know any other way of converting BigInteger to BigDecimal in Java.

Java Hungry

Convert BigInteger to BigDecimal in Java [2 ways]