switch in C# ...

A mail order house sells five different products whose retail prices are: product 1 $2.98, product 2 $4.50, product 3 $9.98, product 4 $4.49 and product 5 $6.87. Write a program that reads a series of pairs of numbers as follows:

Product number

Quantity sold

Your program should use a switch statement to determine the retail price for each product. Your program should calculate and display the total retail value of all products sold. Use a sentinel-controlled loop to determine when the program should stop looping and display the final results

Try the following:

using System;

class Program

{

static void Main()

{

double total = 0;

int product;

int quantity;

double price = 0;

while(true)

{

Console.Write("Enter product number (1-5) or 0 to quit : ");

int.TryParse(Console.ReadLine(), out product);

if (product < 0 || product > 5)

{

Console.WriteLine("Not a valid product number, try again");

}

while(product < 0 || product > 5);

if (product == 0) break;

{

Console.Write("Enter quantity sold or 0 to quit : ");

int.TryParse(Console.ReadLine(), out quantity);

if (quantity < 0)

{

Console.WriteLine("Not a valid quantity sold, try again");

}

while(quantity < 0);

if(quantity == 0) break;

switch(product)

{

case 1:

price = 2.98;

break;

case 2:

price = 4.50;

break;

case 3:

price = 9.98;

break;

case 4:

price = 4.49;

break;

case 5:

price = 6.87;

break;

}

total += price * quantity;

Console.WriteLine();

}

Console.WriteLine("\nThe total retail value of all products sold is ${0:F2}", total);

Console.ReadKey();

}

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Vulpes14y ago
Accepted answer
Try the following:

using System;

class Program
{
static void Main()
{
double total = 0;
int product;
int quantity;
double price = 0;

while(true)
{

do
{
Console.Write("Enter product number (1-5) or 0 to quit : ");
int.TryParse(Console.ReadLine(), out product);
if (product < 0 || product > 5)
{
Console.WriteLine("Not a valid product number, try again");
}
}
while(product < 0 || product > 5);

if (product == 0) break;

do
{
Console.Write("Enter quantity sold or 0 to quit : ");
int.TryParse(Console.ReadLine(), out quantity);
if (quantity < 0)
{
Console.WriteLine("Not a valid quantity sold, try again");
}
}
while(quantity < 0);

if(quantity == 0) break;

switch(product)
{
case 1:
price = 2.98;
break;

case 2:
price = 4.50;
break;

case 3:
price = 9.98;
break;

case 4:
price = 4.49;
break;

case 5:
price = 6.87;
break;
}

total += price * quantity;
Console.WriteLine();
}

Console.WriteLine("\nThe total retail value of all products sold is ${0:F2}", total);
Console.ReadKey();
}
}