Switch only enters "default"

Question

When I read a number, converting it to Int32, my switch simply understands that it is a default and makes the code there described.

static void Main(string[] args)
    {
        Jogador j = new Jogador(); //instancia que representa as decisões do jogador
        Jogador npc = new Jogador(); //instancia que representa o adv controlado pelo computador
        Random rdn = new Random(); // pra gerar a jogada do NPC
        int jj = 1;

        Intro();
        while (jj != 4)
        {
            Opcoes();
            int jnpc = Convert.ToInt32(rdn.Next(1, 3)); //gerando numero aleatorio da jogada do NPC
            jj = Convert.ToInt32(Console.Read());

            switch (jj) // <<<<<<<<<<<<<<- aqui ele le como default qualquer coisa digitada
            {
                case 1: //pedra
                    if (jj == jnpc)
                    {
                        j.Empatou();
                        npc.Empatou();
                        Console.WriteLine("EMPATE");
                    }
                    else if (jnpc == 2)
                    {
                        j.Perdeu();
                        npc.Venceu();
                        Console.WriteLine("VITÓRIA do Computador");
                    }
                    else if (jnpc == 3)
                    {
                        j.Venceu();
                        npc.Perdeu();
                        Console.WriteLine("VITÓRIA do Jogador");
                    }
                    break;
                case 2: //papel
                    if (jj == jnpc)
                    {
                        j.Empatou();
                        npc.Empatou();
                        Console.WriteLine("EMPATE");
                    }
                    else if (jnpc == 1)
                    {
                        j.Venceu();
                        npc.Perdeu();
                        Console.WriteLine("VITÓRIA do Jogador");
                    }
                    else if (jnpc == 3)
                    {
                        j.Perdeu();
                        npc.Venceu();
                        Console.WriteLine("VITÓRIA do Computador");
                    }
                    break;
                case 3: //tesoura
                    if (jj == jnpc)
                    {
                        j.Empatou();
                        npc.Empatou();
                        Console.WriteLine("EMPATE");
                    }
                    else if (jnpc == 1)
                    {
                        j.Perdeu();
                        npc.Venceu();
                        Console.WriteLine("VITÓRIA do Computador");
                    }
                    else if (jnpc == 2)
                    {
                        j.Venceu();
                        npc.Venceu();
                        Console.WriteLine("VITÓRIA do Jogador");
                    }
                    break;
                case 4:


                    break;
                default:
                    Console.WriteLine("Voce digitou um valor inválido, tente novamente");
                    break;
            }//fim do switch
        }//fim do while

Not to lose his temper he also plays 3 more times part of the while and then goes to read again. From the situation, I believe this could be it: My conversion should be another pro switch understand the number (I tested by placing an integer there and then it worked)

And about being reproducing part of the code, I can’t understand why, after all, it reads the opcoes(), which is only a method for shortening text (has no function other than writing on the screen), but does not execute the read that has just below.

The image below is what happens when I type any number.

Answer 1

Just do this:

jj = Console.Read() - 48;

I put in the Github for future reference.

Character 0 is 48, so doing this account does not need to convert anything, does not complicate, and works as desired.

If you want more semantics you can do (char)'0' in place of 48.

Answer 2

That:

jj = Convert.ToInt32(Console.Read());

Trade for this:

Convert.ToInt32(Console.ReadLine());

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If you want to use Console.Read() Voce needs to convert the value to char.

jj = Console.Read();
char exemplo = Convert.ToChar(jj);
switch (exemplo.ToString)

If the user type several values the conversation will return only the first char

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Best solution:

Int32.TryParse(Console.ReadLine(), out jj);

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