This C# program needs to add only positive values USING A DO WHILE LOOP ONLY . I

Question

This C# program needs to add only positive values USING A DO WHILE LOOP ONLY. If there is a negative value it has to be ignored. Any thoughts on how to do that?

The output should look like this:

Output:

Item1: $2.00 (Enter 1st value)

Item 2:: $3.00 (Enter 2nd value)

Item 3: $1.00 (Enter 3rd value. Other positive values can be entered after this)

Item 4: $-2 (Note: A negative number will not be substracted in the subtotal. It will only be ignored)

There are 3 Items in this order (This is the total ITEM count)

Subtotal: $6.00 (This are the values of Items 1, 2,3)

Tax 0.035: $0.21(This is the subtotal multiplied to 0.035)

Total: $6.21(This is the sum of Subtotal and Tax)

using System;
using System.Collections.Generic;
using System.Linq;
          
public class Program
{
public static void Main()
{
decimal Count = 0.00m;
decimal price = 0.00m;
decimal subtotal = 0.00m;
decimal tax = 0.00m;
decimal total = 0.00m;
  
  
do
{
Count = Count +1;
Console.Write ("Item"+ Convert.ToInt32(Count) + ": $");
price = Convert.ToDecimal(Console.ReadLine());
Console.WriteLine (price);
subtotal = subtotal + price;

}
while (price > -1);
  
tax = (decimal)0.035 * subtotal;
total = tax + subtotal;
               Count = Count -1;
  
Console.WriteLine ("There are "+ Count + " Items in this order.");
Console.WriteLine ("Subtotal: "+ subtotal);
Console.WriteLine ("Tax 0.035: "+ tax);
Console.WriteLine ("Total: "+ total);
}
}

Explanation / Answer

From the above program just try to keep a decision statement that checks, if(price<0) then continue loop

Program:

using System;
using System.Collections.Generic;
using System.Linq;
  
public class Program
{
public static void Main()
{
decimal Count = 0.00m;
decimal price = 0.00m;
decimal subtotal = 0.00m;
decimal tax = 0.00m;
decimal total = 0.00m;
  
  
do
{
Count = Count +1;
Console.Write ("Item"+ Convert.ToInt32(Count) + ": $");
price = Convert.ToDecimal(Console.ReadLine());
if(price<0)
continue;
Console.WriteLine (price);
subtotal = subtotal + price;

}
while (price > -1);
  
tax = (decimal)0.035 * subtotal;
total = tax + subtotal;
Count = Count -1;
  
Console.WriteLine ("There are "+ Count + " Items in this order.");
Console.WriteLine ("Subtotal: $"+ subtotal);
Console.WriteLine ("Tax 0.035: $"+ tax);
Console.WriteLine ("Total: $"+ total);
}
}

Output:

Item1: $2                                                                                                                          

2                                                                                                                                  

Item2: $3                                                                                                                          

3                                                                                                                                  

Item3: $1                                                                                                                          

1                                                                                                                                  

Item4: $-2                                                                                                                         

There are 3.00 Items in this order.                                                                                                

Subtotal: $6.00                                                                                                                    

Tax 0.035: $0.21000                                                                                                                

Total: $6.21000

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