Question

Using Functions:

Conversion Program: Write a program that perform conversions that we use often. Program should display the following menu

           

                                                Welcome to the Conversion Program

                                                ===============================

Fahrenheit to Celsius

Miles to kilometers

Liters to Gallons

Exit from the program

You should implement this program using functions and your program need to have following functions

void displayMenu()

double fahrenheitToCilsuis(double fTemp)

double milesToKilometers(double miles)

double litersToGallons(doube liters)

Answer 1

#include<stdio.h>

//displaying menu function

void displayMenu()

{

printf("\n\t\t\tWelcome to the conversion program\n\n");

printf("--------------------------------------------------------------------\n");

printf("1.Fahrenheit to Celsius\n2.Miles to Kilometers\n3.Liters to Gallons\n4.Exit\n");

}

//fahrenhiet to cilisuis converstion

double fahrenheitToCilsuis(double fTemp)

{

//Forumula to convert from Fahrenhiet to Celsius

//subtract 32 from the input and then multiply with 5 then divide with 9

return (fTemp-32)*5/9;

}

//miles to killometers conversion

double milesToKilometers(double miles)

{

//one mile is equal to 1.6 kilometers

return miles*1.6;

}

//liters to gallons convetsion

double litersToGallons(double liters)

{

//one liter is equal to 0.26417 gallons

return (liters*0.26417);

}

//main function

int main()

{

int option;

double fTemp,celsius,miles,km,liters,gallons;

//loop will iterate until user exit

do{

displayMenu();//calling displayMenu function

scanf("%d",&option);

switch(option)

{

//temperature conversion

case 1:

printf("Enter temperature in Fahrenhiet\n");

scanf("%ld",&fTemp);

celsius=fahrenheitToCilsuis(fTemp);

printf("Fahrenhiet = %ld --- Celsius = %ld\n",fTemp,celsius);

break;

//distance conversion

case 2:

printf("Enter distance in miles\n");

scanf("%ld",&miles);

km=milesToKilometers(miles);

printf("miles = %ld --- Kilometers = %ld\n",miles,km);

break;

//volume conversion

case 3:

printf("Enter volume in liters\n");

scanf("%ld",&liters);

gallons=litersToGallons(liters);

printf("liters = %ld --- Gallons = %ld\n",liters,gallons);

break;

//exit from the program

case 4:

exit(0);

}

}while(1);

}