How would you use the equation bac = ((numberOfDrinks / 2) * (genderConstant / weight) - (.016 * hoursDrinking)) and the gender constants of 7.5 for females and 9.0 for males to write a Java code that determines and prints each gender's BAC levels given values from the main method?

I am trying to write a method that my main method would call and plug variables into but I am not sure how to set it up so that it works for each gender without getting either mixed. I am only a beginner but I am not supposed to use any is statements (which makes this pretty annoying). Could I use for loops?