Java BigDecmal change negative value to positive

Question

A third-party service sends a negative value to the BigDecimal field in my service. I need to make it positive.

I re-read tons of information on BigDecimal in Spring, but couldn't find how to fix this. I don’t know if this can be done with the help of annotation that will automatically change the sign from negative to positive, or do I need to manually change the sign?

For example, my DTO:

private BigDecimal priceValue;

The value -14.50 always comes to me, and I want the result to be 14.50 with a "+" sign.

I read in the documentation that @Positive can be used - but this doesn't work for me.

user_982161 · Answer

I would say absolute value is your friend here:

https://docs.oracle.com/javase/7/docs/api/java/math/BigDecimal.html#abs()

just keep in mind that BigDecimal objects are immutable...

public foo() 
{ 
    BigDecimal num = new BigDecimal("-14.51"); 
    System.out.println("Absolute value is " + num.abs()); 
}

Java BigDecmal change negative value to positive

1 Answers