Homework1

/* Homework 1 for Spring 2012 CS-1050
 * Aaron McRuer
 * Lab Section F
 * 2/18/2012
 * Version 1.0.0.0
 */

#include <stdio.h>

int user_selection;
int type_selection;
double fahrenheit = 0;
double celsius = 0;
double print_temperature = 0;
double miles = 0;
double kilometers = 0;
double print_distance = 0;
double pounds = 0;
double kilograms = 0;
double print_weight = 0;
double square_mile = 0;
double hectare = 0;
double print_area = 0;
double US_Dollar = 0;
double euro = 0;
double print_currency = 0;

int main(void)
{
    //welcome user and present menu options
    printf("Welcome to the Unit Conversion Tool. Please choose from the following options: \n");
    printf("    1. Temperature\n");
    printf("    2. Distance\n");
    printf("    3. Weight\n");
    printf("    4. Area\n");
    printf("    5. Currency\n");
    printf("    0. Exit\n");
    //take in user input for the menu
    scanf("%d", &user_selection);
    //loop until user types 0 for end-of-program
    while (user_selection != EOF)
    {
        //determine which option was selected
        switch (user_selection)
        {
            case '1': //Temperature

            //present menu for what type of conversion they want
            printf("Select mode of conversion: \n");
            printf("    1. Fahrenheit to Celsius\n");
            printf("    2. Celsius to Fahrenheit\n");
            scanf("%d", &type_selection);

                //determine which option was selected
                switch (type_selection)
                {
                    case '1':   //Fahrenheit to Celsius
                        printf("Please enter degrees Fahrenheit: \n");
                        scanf("%f", &fahrenheit);
                        print_temperature = (fahrenheit - 32) * (5/9);
                        printf("%f degrees Fahrenheit = %f degrees Celsius\n", fahrenheit, print_temperature);
                        break;
                    case '2':   //Celsius to Fahrenheit
                        printf("Please enter degrees Celsius: \n");
                        scanf("%f", &celsius);
                        print_temperature = (celsius * (9/5) + 32);
                        printf("%f degrees Celsius = %f degrees Fahrenheit\n", celsius, print_temperature);
                        break;
                }

                break;

            case '2': //Distance

            //present menu for what type of conversion they want
            printf("Select mode of conversion: \n");
            printf("    1. Miles to Kilometers\n");
            printf("    2. Kilometers to Miles\n");
            scanf("%d", &type_selection);

                //determine which option was selected
                switch (type_selection)
                {
                    case '1':   //Miles to Kilometers
                        printf("Please enter the number of miles: \n");
                        scanf("%f", &miles);
                        print_distance = miles * 1.609344;
                        printf("%f miles = %f kilometers\n", miles, print_distance);
                        break;
                    case '2':   //Kilometers to Miles
                        printf("Please enter the number of kilometers: \n");
                        scanf("%f", &kilometers);
                        print_distance = kilometers * 0.621371;
                        printf("%f kilometers = %f miles\n", kilometers, print_distance);
                        break;
                }

                break;

            case '3': //weight

            //present menu for what kind of conversion they want
            printf("Select mode of conversion: \n");
            printf("    1. Pounds to Kilograms\n");
            printf("    2. Kilograms to Pounds\n");
            scanf("%d", &type_selection);

                //determine which option was selected
                switch (type_selection)
                {
                    case '1':   //Pounds to Kilograms
                        printf("Please enter the number of pounds: \n");
                        scanf("%f", &pounds);
                        print_weight = pounds * 0.45359237;
                        printf("%f pounds = %f kilograms\n", pounds, print_weight);
                        break;
                    case '2':   //Kilograms to Pounds
                        printf("Please enter the number of kilograms: \n");
                        scanf("%f", &kilograms);
                        print_weight = kilograms * 2.20462262;
                        printf("%f kilograms = %f pounds\n", kilograms, print_weight);
                        break;
                }

                break;

            case '4': //area

            //present menu for what kind of conversion they want
            printf("Select mode of conversion: \n");
            printf("    1. Square Mile to Hectare\n");
            printf("    2. Hectare to Square Mile\n");
            scanf("%d", &type_selection);

                //determine which option was selected
                switch (type_selection)
                {
                    case '1':   //Square Mile to Hectare
                        printf("Please enter the number of square miles: \n");
                        scanf("%f", &square_mile);
                        print_area = square_mile * 258.998811;
                        printf("%f square miles = %f hectares\n", square_mile, print_area);
                        break;
                    case '2':   //Hectare to Square Mile
                        printf("Please enter the number of hectares: \n");
                        scanf("%f", &hectare);
                        print_area = hectare * 0.00386102159;
                        printf("%f hectares = %f square miles\n", hectare, print_area);
                        break;
                }

                break;

            case '5': //currency

            printf("Select mode of conversion: \n");
            printf("    1. US Dollar to EU Euro\n");
            printf("    2. EU Euro to US Dollar\n");
            scanf("%d", &type_selection);

                //determine which option was selected
                switch (type_selection)
                {
                    case '1':   //US Dollar to EU Euro
                        printf("Please enter the number of US Dollars: \n");
                        scanf("%f", &US_Dollar);
                        print_currency = US_Dollar * 0.7599;
                        printf("%f US Dollars = %f Euros\n", US_Dollar, print_currency);
                        break;
                    case '2':   //Euro to Dollar
                        printf("Please enter the number of Euros: \n");
                        scanf("%f, euro");
                        print_currency = euro * 1.3159;
                        printf("%f Euros = %f US Dollars", euro, print_currency);
                        break;
                }

                break;



        }


    }
}