C# Online Compiler | .NET Fiddle

<no name> by Citron

using System;
					
public class Program
{
	public static void Main()
	{
		int num1;
		int num2;
		string op;
		
		Console.WriteLine("Enter a number: ");
		num1 = Convert.ToInt32(Console.ReadLine());
		
		Console.WriteLine("Enter an operator: ");
		op = Console.ReadLine();
		
		Console.WriteLine("Enter a second number: ");
		num2 = Convert.ToInt32(Console.ReadLine());
		
				
		if(op == "+") {
			Console.WriteLine("Your answer is " + (num1 + num2));
		}
		else if(op == "-") {
			Console.WriteLine("Your answer is " + (num1 - num2));
		}
		else if(op == "*") {
			Console.WriteLine("Your answer is " + num1 * num2);
		}
		else if(op == "/") {
			Console.WriteLine("Your answer is " + num1 / num2);
		}
		else if(op == "^") {
			Console.WriteLine("Your answer is " + Math.Pow(num1, num2));
		}
		else {
			Console.WriteLine("Invalid operator");
		}
		
		
		Console.ReadLine();
	}
}

 
using System;
                    
public class Program
{
    public static void Main()
    {
        int num1;
        int num2;
        string op;
        
        Console.WriteLine("Enter a number: ");
        num1 = Convert.ToInt32(Console.ReadLine());
        
        Console.WriteLine("Enter an operator: ");
        op = Console.ReadLine();
        
        Console.WriteLine("Enter a second number: ");
        num2 = Convert.ToInt32(Console.ReadLine());
        
                
        if(op == "+") {
            Console.WriteLine("Your answer is " + (num1 + num2));
        }
        else if(op == "-") {
            Console.WriteLine("Your answer is " + (num1 - num2));
        }
        else if(op == "*") {
            Console.WriteLine("Your answer is " + num1 * num2);
        }
        else if(op == "/") {
            Console.WriteLine("Your answer is " + num1 / num2);
        }
        else if(op == "^") {
            Console.WriteLine("Your answer is " + Math.Pow(num1, num2));
        }
        else {
            Console.WriteLine("Invalid operator");
        }
        
        
        Console.ReadLine();
    }
}

Compilation error (line 5, col 85): ) expected
Compilation error (line 5, col 105): Cannot use more than one type in a for, using, fixed, or declaration statement
Compilation error (line 5, col 117): Cannot use more than one type in a for, using, fixed, or declaration statement
Compilation error (line 5, col 129): Cannot use more than one type in a for, using, fixed, or declaration statement
Compilation error (line 5, col 132): ; expected
Compilation error (line 8, col 15): ; expected
Compilation error (line 8, col 19): Invalid token '=' in class, struct, or interface member declaration
Compilation error (line 8, col 25): Invalid token '-' in class, struct, or interface member declaration
Compilation error (line 8, col 41): Invalid token '(' in class, struct, or interface member declaration
Compilation error (line 8, col 45): Invalid token ')' in class, struct, or interface member declaration
Compilation error (line 8, col 48): Method must have a return type
Compilation error (line 12, col 13): Invalid token 'using' in class, struct, or interface member declaration
Compilation error (line 12, col 53): ; expected
Compilation error (line 24, col 37): Invalid token '(' in class, struct, or interface member declaration
Compilation error (line 24, col 41): Invalid token ')' in class, struct, or interface member declaration
Compilation error (line 25, col 36): Invalid token '(' in class, struct, or interface member declaration
Compilation error (line 28, col 13): A namespace cannot directly contain members such as fields or methods
Compilation error (line 29, col 9): Type or namespace definition, or end-of-file expected

Last Run:	1:01:16 am
Compile:	0s
Execute:	0.043s
Memory:	0b
CPU:	0s

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