Question

#include <iostream>using namespace std;int main(){ char meal_choice; //user's choice int servings, total_calories; // Display greeting: cout << "Welcome to the Calorie Count-ulator!\n"; // Get user input: cout << "Enter your meal choice ([P]izza, [S]alad, [H]amburger)\n"; cin >> meal_choice; cout << "Enter the amount of servings (1-9):\n"; cin >> servings; // TODO: Use a switch statement to evaluate the user's meal choice // Handle error checking where appropriate // Exit the program: return 0;}

Answer 1

Complete the program as follows:

1. Use switch statement to evaluate the user's meal choice
2. print the choice is 'Pizza' if meal_choice is 'P'
3. print the choice is 'Salad' if meal_choice is 'S'
4. print the choice is 'Hamburger' if meal_choice is 'H'
5. if the user enters any invalid choice, print error message
6. check if servings is between 1 and 9
7. print servings
8. Otherwise, print error message

Program:

#include <iostream>
using namespace std;
int main(){
    char meal_choice; //user's choice 
    int servings, total_calories; 
    // Display greeting: 
    cout << "Welcome to the Calorie Count-ulator!\n"; 
    // Get user input: 
    cout << "Enter your meal choice ([P]izza, [S]alad, [H]amburger)\n"; 
    cin >> meal_choice; 
    cout << "Enter the amount of servings (1-9):\n"; 
    cin >> servings; 
    // TODO: Use a switch statement to evaluate the user's meal choice 
    switch(meal_choice){                                    /* Use switch statement to evaluate the user's meal choice */
        case 'P': cout<<"\nYou have chosen Pizza.\n";       /* print the choice is 'Pizza' if meal_choice is 'P' */
                  break;
        case 'S': cout<<"\nYou have chosen Salad.\n";       /* print the choice is 'Salad' if meal_choice is 'S' */
                  break;
        case 'H': cout<<"\nYou have chosen Hamburger.\n";   /* print the choice is 'Hamburger' if meal_choice is 'H' */
                  break;
        default: cout<<"\nInvalid choice..! Please enter a valid option..";     /* if the user enters any invalid choice, print error message */
    }
    if(servings>=1&&servings<=9){                           /* check if servings is between 1 and 9 */
        cout<<"\nAmount of servings : "<<servings;          /* print servings */
    }
    else{
        cout<<"Please enter a valid amount of servings..!"; /* Otherwise, print error message */
    }
    // Handle error checking where appropriate 
    // Exit the program:
    return 0;
}

Screenshot:

Output:

Output2:

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