Help me fix the errors

Question

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace BankApplication
class Program
static void Main(string[] args)
String AccountName = " ";
float Balance = 0f;
Boolean quit = false;
int userChoice;
Console.WriteLine("please Chose what to do:");
Console.WriteLine("1. Create Acount");
Console.WriteLine("2. Deposit cash");
Console.WriteLine("3. Withdraw Cash");
Console.WriteLine("4. Chech balance");
Console.WriteLine("or 0. to quit");
userChoice = Console.Read();
switch(userChoice)
case 1:
string name;
Console.WriteLine("please enter account name");
name = Console.ReadLine();
if (name==name)
Console.WriteLine("name alredy exist");
else
AccountName += name;
Console.WriteLine("Account Name ", name);
break;
case 2:
float amount;
Console.WriteLine("Amount to deposit: ");
amount = Console.Read();
if (amount <= 0){
Console.WriteLine("Can't deposit nonpositive amount.");
else {
Balance += amount;
Console.WriteLine("R" + amount + " has been deposited.");
break;
case 3:
Console.WriteLine("Amount to withdraw: ");
amount = Console.Read();
if (amount <= 0 || amount > Balance)
Console.WriteLine("Withdrawal can't be completed.");
else {
Balance -= amount;
Console.WriteLine("R" + amount + " has been withdrawn.");
break;
case 4:
Console.WriteLine("Your balance: R" + Balance);
break;
case 0:
quit = true;
break;
default:
Console.WriteLine("Wrong choice.");
break;
while(!quit);
Console.WriteLine("BIY!");

Answer 1

In addition to the other good advice already posted, I suggest that you NOT us the float datatype for the balance, as you may encounter rounding errors.
Use the decimal datatype instead.
Instead of:
float Balance
= 0f;
use:
decimal Balance = 0d;
Read here:
https://msdn.microsoft.com/en-us/library/364x0z75.aspx?f=255&MSPPError=-2147217396
"the decimal type has more precision and a smaller range, which makes it appropriate for financial and monetary calculations."