Feet and Inches to Centimeters Java Method Overloading Sample

FeetAndInchesToCentimeters.java

public class FeetAndInchesToCentimeters {
    //This is a sample of Java Method overloading.
    //My solution to a challenge from Udemy Java Programming Masterclass covering Java 11 & Java 17
    //by Tim Buchalka Lecture 58.

    public static void main(String[] args) {

        System.out.println(FeetAndInchesToCentimeters.calcFeetAndInchesToCentimeters(5,10));
        System.out.println(FeetAndInchesToCentimeters.calcFeetAndInchesToCentimeters(4,10));
        System.out.println(FeetAndInchesToCentimeters.calcFeetAndInchesToCentimeters(70));
        System.out.println(FeetAndInchesToCentimeters.calcFeetAndInchesToCentimeters(58));
    }

     public static int calcFeetAndInchesToCentimeters(int feet, int inches) {
         if(feet<0||inches<0||inches>=12){
             return -1;
         }
         double centimeters = ((feet*12) + inches) * 2.54;
         return (int)Math.round(centimeters);
     }
     public static int calcFeetAndInchesToCentimeters(int inches) {
         if(inches<0){
             return -1;
         } else {
             int feet = (inches / 12);
             inches = (inches % 12);
             double centimeters = calcFeetAndInchesToCentimeters(feet,inches);
             return (int)Math.round(centimeters);
         }
    }
}



                // Create a method called calcFeetAndInchesToCentimeters
                // It needs to have two parameters.
                // feet is the first parameter, inches is the 2nd parameter
                //
                // You should validate that the first parameter feet is >= 0
                // You should validate that the 2nd parameter inches is >=0 and <=12
                // return -1 from the method if either of the above is not true
                //
                // If the parameters are valid, then calculate how many centimetres
                // comprise the feet and inches passed to this method and return
                // that value.
                //
                // Create a 2nd method of the same name but with only one parameter
                // inches is the parameter
                // validate that its >=0
                // return -1 if it is not true
                // But if its valid, then calculate how many feet are in the inches
                // and then here is the tricky part
                // call the other overloaded method passing the correct feet and inches
                // calculated so that it can calculate correctly.
                // hints: Use double for your number dataTypes is probably a good idea
                // 1 inch = 2.54cm  and one foot = 12 inches
                // use the link I give you to confirm your code is calculating correctly.
                // Calling another overloaded method just requires you to use the
                // right number of parameters.