If Statements running all three codes - statements

Question

using System;
using System.Drawing;
namespace Group_cafe7
{
class Program
{
static void Main(string[] args)
{
string name, milk, cap, latt, amer;
int choice;
char sizeC, sizeL, sizeA;
double cappucciniosmall, cappucciniomedium, cappucciniolarge, lattesmall, lattemedium, lattelarge, americanosmall, americanomedium, americanolarge, discount;
Console.WriteLine("Hello, Please enter your name: ");
name = Console.ReadLine();
Console.WriteLine(" Please enter your number of choice ");
Console.WriteLine(" 1.Cappuccinio 2. Latte 3. Americano ");
choice = Convert.ToInt32(Console.ReadLine());
if (choice == 1)
{
Console.WriteLine(" Choose size of choice: ");
Console.WriteLine(" S, M, L ");
sizeC = Convert.ToChar(Console.ReadLine());
cappucciniosmall = 13.50;
cappucciniomedium = 18.00;
cappucciniolarge = 25.50;
if (sizeC == 'S')
{
Console.WriteLine(" Add Hotmilk yes/no ");
milk = Console.ReadLine();
Console.WriteLine(" Cappuccinio " + cappucciniosmall);
cappucciniosmall = Convert.ToDouble(Console.ReadLine());
}
if (sizeC == 'M')
{
Console.WriteLine(" Add Hotmilk yes/no ");
milk = (Console.ReadLine());
Console.WriteLine(" Cappuccinio " + cappucciniomedium);
cappucciniomedium = Convert.ToDouble(Console.ReadLine());
}
if (sizeC == 'L')
{
Console.WriteLine(" Add Hotmilk yes/no ");
milk = (Console.ReadLine());
Console.WriteLine(" Cappuccinio " + cappucciniolarge);
cappucciniolarge = Convert.ToDouble(Console.ReadLine());
}
Console.WriteLine("Hello, Please enter your name: ");
name = Console.ReadLine();
Console.WriteLine(" Please enter your number of choice ");
Console.WriteLine(" 1.Cappuccinio 2. Latte 3. Americano ");
choice = Convert.ToInt32(Console.ReadLine());
}
else if (choice == 2)
{
Console.WriteLine(" Choose size of choice: ");
Console.WriteLine(" S, M, L ");
sizeL = Convert.ToChar(Console.ReadLine());
lattesmall = 15.50;
lattemedium = 20.00;
lattelarge = 27.50;
if (sizeL == 'S')
{
Console.WriteLine(" Add Hotmilk yes/no ");
milk = Console.ReadLine();
Console.WriteLine(" Latte " + lattesmall);
lattesmall = Convert.ToDouble(Console.ReadLine());
}
if (sizeL == 'M')
{
Console.WriteLine(" Add Hotmilk yes/no ");
milk = (Console.ReadLine());
Console.WriteLine(" Latte " + lattemedium);
lattemedium = Convert.ToDouble(Console.ReadLine());
}
if (sizeL == 'L')
{
Console.WriteLine(" Add Hotmilk yes/no ");
milk = (Console.ReadLine());
Console.WriteLine(" Latte " + lattelarge);
lattelarge = Convert.ToDouble(Console.ReadLine());
}
else if (choice == 3)
{
}
Console.WriteLine(" Choose size of choice: ");
Console.WriteLine(" S, M, L ");
sizeA = Convert.ToChar(Console.ReadLine());
americanosmall = 17.50;
americanomedium = 22.00;
americanolarge = 29.50;
if (sizeA == 'S')
{
Console.WriteLine(" Add Hotmilk yes/no ");
milk = Console.ReadLine();
Console.WriteLine(" Americano " + americanosmall);
americanosmall = Convert.ToDouble(Console.ReadLine());
}
if (sizeA == 'M')
{
Console.WriteLine(" Add Hotmilk yes/no ");
milk = (Console.ReadLine());
Console.WriteLine(" Americano " + americanomedium);
americanomedium = Convert.ToDouble(Console.ReadLine());
}
if (sizeA == 'L')
{
Console.WriteLine(" Add Hotmilk yes/no ");
milk = (Console.ReadLine());
Console.WriteLine(" Americano " + americanolarge);
americanolarge = Convert.ToDouble(Console.ReadLine());
}
}
}
}
}