how to convert integer to bigdecimal in java

Question

I want to create a method that caculates multiplication an integer and a bigdecimal. I search on google and forums nothing I found.

import java.math.BigDecim         


        

Answer 1

Google definitely could have helped you, if you know what to look for:

https://docs.oracle.com/javase/9/docs/api/java/math/BigDecimal.html#BigDecimal-int-

This is one of the constructors for BigDecimal, which allows you to do the following:

BigDecimal five = BigDecimal.valueOf(5);
BigDecimal seven = BigDecimal.valueOf(2).add(five);

Seeing as you stated you wanted to multiply an int and a BigDecimal, this would be achieved as follows:

BigDecimal result = yourBigDecimal.multiply(BigDecimal.valueOf(yourInt));

And, supposing you want this result as an int:

int intResult = result.intValue();

Keep in mind that this throws away the fraction though. If you want rounding instead:

int intResult = result.round(0, RoundingMode.HALF_UP).intValue();