Part 11 – C# Tutorial – switch statement in C#

Show this switch case statement in Windows form application

I saw your mvc tutorials ,asp.net core tutorials and also c# the all stuff is very helpful.
But now I want to zamrine please can you start making tutorials on a zamrine mobile application using dot net

How can this program print "press any key to continue"

So logical and concise. Thank you again.

Nice, just a note, it should be "Your number is not 10, 20 or 30", not "&" or maybe "nor" instead of "or"

thank u so much sir for explaining in very simple way:)

Awesome teaching ,,, such a good way 🙂 thanks a lottttttttttttttttttttttttttttttttt sir 🙂

For if condition i can use logical operator and check " i and s " how can i use in switch case please let me know

if (i == 1&& s=="a")
{
Console.WriteLine("your num is 1 & a");
}

how to code above in switch condition???????

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication54
{
class Program
{
static void Main(string[] args)
{
var game = new GameOfLife(0, 0);
game.insertRandomLives();
Console.WriteLine(game.DrawGeneration);
for (;;)
{
game.ApplyRUlesAndNewG();
System.Threading.Thread.Sleep(1000);
Console.Clear();
Console.WriteLine(game.DrawGeneration);
}
}
}
class GameOfLife
{
bool[,] Generation;

Random random = new Random();

public bool DrawGeneration { get; internal set; }

public GameOfLife(int numberofrows, int numberofculums)
{
//NR= numberofrows:)
//NC= numberofculums:)
{
CreateFirstGeneration(numberofrows, numberofculums);
}
}

private void CreateFirstGeneration(int rows, int cols)
{
if (rows <= 0 || cols <= 0)
{
rows = 21;
cols = 21;
}
Generation = new bool[rows, cols];
}

public void insertRandomLives() => Iterator((row, col) => { G[row, col] = random.Next(0, 10) == 1; });

public int CountNeighbours(int rows, int col)
{
var count = default(int);
count += rows + 1 < Generation.GetLength(0) && Generation[rows + 1, col] ? 1 : 0;
count += rows – 1 >= Generation.GetLowerBound(0) && Generation[rows – 1, col] ? 1 : 0;
count += col + 1 <= Generation.GetLength(1) && Generation[rows, col + 1] ? 1 : 0;
count += col – 1 >= Generation.GetLowerBound(1) && Generation[rows, col – 1] ? 1 : 0;
count += col + 1 <= Generation.GetLength(0) && col + 1 < Generation.GetLength(1) && Generation[rows + 1, col + 1] ? 1 : 0;
count += col – 1 <= Generation.GetLowerBound(0) && col – 1 < Generation.GetLowerBound(1) && Generation[rows – 1, col – 1] ? 1 : 0;
count += col + 1 <= Generation.GetLength(0) && col – 1 < Generation.GetLength(1) && Generation[rows + 1, col – 1] ? 1 : 0;
count += col – 1 <= Generation.GetLowerBound(0) && col + 1 < Generation.GetLength(1) && Generation[rows – 1, col + 1] ? 1 : 0;

return count;

}

public void ApplyRUlesAndNewG()
{
var newGen = new bool[Generation.GetLength(0), Generation.GetLength(1)];
Iterator((row, col)) =>
{
if (Generation[row, col])
{
if (CountNeighbours(row, col) > 3)

{
newGen[row, col] = !Generation[row, col];
else if (CountNeighbours(rows, col) == 3 || CountNeighbours(rows, col) == 4 || CountNeighbours(rows, col) == 5)
{
newGen[row, col] = Generation[row, col];
else if (CountNeighbours(rows, col) > 5)
{
newGen[row, col] = !Generation[row, col];

else if (CountNeighbours(rows, col) == 5)
{
newGen[row, col] = !Generation[row, col];
}

}
}
}
}
}
Generation = (bool[,])newGen.Clone();
}

}

public string DrawGeneration()
{
var builder = new StringBuilder();
Interator((row, col)) =>
{
builder.Append(Generation[row, col] ? "*" : " ");
})
() =>
{
builder.AppendLine();
})
return builder.ToString();

}

public void Interator(Func<object, object, object> p)
{
throw new NotImplementedException();
}

private void Iterator(Action<int, int> statement, Action statement2 = null)
{
for (var row = 0; row < Generation.GetLength(0); row++)
{
for (var col = 0; col < Generation.GetLength(1); col++)
{
statement(row, col);
}
if (statement2 != null)
{
statement2();
}

}
}
}

what i did wrong

?

what if i want instead of those number some text like string how to do that ?

Thank You Very Much Sir..

thank you for your great tutorial

I prefer to use case than if. Less confusing.

awesome

awesome

the reason i love programming is you sir 🙂

I never seen cases without code, really cool +kudvenkat

do you have the language like just 0s and 1s like 010100010101
i dont know the name

The if/else portion fails when the user users a non numerical input on the console. Should read input as a string then confirm it's a number.

Console.WriteLine("Please Enter a Number: ");
string UserInputString = Console.ReadLine();
int UserInputNumber;

//confirm input is a number
int.TryParse(UserInputString, out UserInputNumber);

if (UserInputNumber == 10)
Console.WriteLine("Your Number is 10");
else if (UserInputNumber == 20)
Console.WriteLine("Your Number is 20");
else if (UserInputNumber == 30)
Console.WriteLine("Your Number is 30");
else
Console.WriteLine("Your Number is not 10 20 30");

so if i understood correctly the break system is better than the else if because its lighter on the program ?? or what?

i got this error..plz..give answr…for below program

Error 1 Could not find an implementation of the query pattern for source type 'string[]'.  'Join' not found.  Are you missing a reference or a using directive for 'System.Linq'?

program::;;;

using System;
    class Program
    {
        static void Main()
        {
            String[] types = { "meat", "dairy", "veg", "fruits" };
            var prods = new[]
            {
                new {Product = "beaf",Category = "meat"},
                new {Product = "toilet paper",Category = "houshold"},
                new {Product = "milk",Category = "dairy"},
                new {Product = "candybar",Category = "snack"}
            };
            var q = from t in types
                    join p in prods on t equals p.Category
                    select new { Category = t, p.Product };
            foreach (var v in q)
               Console.WriteLine("{0}:{1}",v.Product,v.Category);

        }
    }
    

Thanks for all the wonderful tutorials.
I have a question when we user "if" and when "switch" statement?