MonetaryQuery vs MonetaryOperator

Operations done using MonetaryQuery and MonetaryOperator might be equivalent. The reason why we have them as separate interfaces is to keep their fuctions separate. MonetaryQuery is responsible for retrieving information about the MonetaryAmount whereas MonetaryOperator is responsible for applying operations on the MonetaryAmount.

public class DifferenceMonetaryQueryMonetaryOperator {

    public  static void main(String[] args) {
        MonetaryQuery<MonetaryAmount> doubleQuery = m -> m.multiply(2);
        MonetaryOperator doubleOperator = m -> m.multiply(2);

    }
}