Temperature

package temperature;
import java.util.Scanner;

public class Temperature {
    public static void main(String[] args) {
        //MP 2 Temperature, a java program that prompts user for centigrade temperature and converts that number into Fahrenheit and Celcius
        //after 5 input numbers given from user, averages are printed to user

        //@ author Renee Waggoner

        Scanner userInput = new Scanner(System.in);
        double celsius, fahrenheit, averageFahrenheit, averageCentigrade, totalUserInput = 0, totalFahrenheit=0, totalCentigrade=0;

        //prompting user for input
        do {
            System.out.print("Enter Temp in Centigrade or <= -100.0 to quit: ");
            celsius = userInput.nextDouble();

            //user wants to continue, known by input>-100
            if(celsius>-100) {

                //calculations begin, this is plus one because initalized with zero
                totalUserInput++;

                //temperature conversion
                fahrenheit = (9.0/5.0)*celsius +32.0;

                //printing results to user with 1 decimal
                System.out.printf("Temperature: F(%.1f) C(%.1f)\n", fahrenheit,celsius);
                totalFahrenheit+=fahrenheit;
                totalCentigrade+=celsius;}
        }while(celsius>-100);

        if(totalUserInput>0) {
            //if statement true, compute averages
            averageFahrenheit = totalFahrenheit/totalUserInput;
            averageCentigrade = totalCentigrade/totalUserInput;
        }
        else {
            //if statement false, do this
            averageFahrenheit=0;
            averageCentigrade=0;
        }
        //printing averages to user with 1 decimal for centigrade and 15 decimals for fahrenheit
        System.out.printf("Average: Centigrade: (%.1f) ", averageCentigrade);
        System.out.printf("Average: Fahrenheit: (%.15f)\n", averageFahrenheit);
        userInput.close();
    }
}