Question

Bill and Tip Calculator

Write a C program to generate a receipt for a restaurant.

Your application should allow the user to enter the bill amount and allow them to decide if they would like to leave a 15 percent tip or not.

▪ Do not allow the user to enter a negative value for the bill.

▪ Display the bill amount, tax amount, tip amount, and total amount.

▪ To calculate the tip, multiply the bill amount by 0.15. To calculate the tax, multiply the bill amount by 0.0825.

▪ To calculate the total, add the tip, tax, and bill.

Answer 1

Program screenshots:

Sample output:

Code to copy:

// Include the required header files.

#include <stdio.h>

// Define the main() function.

int main()

{

    // Declare the required variables.

    float bill_amount = 0;

    float tip_amount = 0, tax_amount, total;

    char choice;

    // Prompt the user to enter the bill amount.

    printf("Enter the bill amount: ");

    scanf("%f", &bill_amount);

    // Prompt the user to enter the amount

    // again if the amount is negative.

    while (bill_amount < 0)

    {

        printf("Bill amount cannot be negative!\n");

        printf("Enter the bill amount: ");

        scanf("%f", &bill_amount);

    }

    scanf("%c", &choice);

    // Compute the tip amount and ask the

    // user if they want to pay the tip

    // amount or not.

    tip_amount = bill_amount * 0.15;

    printf("Tip amount = %f\n", tip_amount);

    printf("Do you want to pay the tip (y/n)? ");

    scanf("%c", &choice);

    // Set the tip amount to 0 if the

    // user enters no.

    if(choice == 'n' || choice == 'N')

    {

        tip_amount = 0;

    }

    // Compute the tax amount and the total amount.

    tax_amount = bill_amount * 0.0825;

    total = bill_amount + tax_amount + tip_amount;

    // Display all the information to the user.

    printf("\nBill amount = %f\n", bill_amount);

    printf("Tax amount = %f\n", tax_amount);

    printf("Tip amount = %f\n", tip_amount);

    printf("Total amount = %f\n", total);

    // Return 0 and exit the program.

    return 0;

}