Thread: Beginner Question

How do I fix this? I don't know how to convert inputted choice to equal the If statement.

Code:

#include "stdafx.h"

#using <mscorlib.dll>

using namespace System;

int _tmain()
{
	double cont = 1, r, theta, x, y, A, B;
    __wchar_t choice;
	while (cont == 1)
	{
   	Console::Write( S"A	Convert Polar Coordinates to Cartesian \n");
	Console::Write( S"B	Convert Cartesian Coordinates to Polar \n");
	Console::Write( S"C	Determine Roots of a quadratic equation \n");
	choice = Char::Parse(Console::ReadLine());

   if ( choice == A)
   {
    Console::Write( S"R: ");
    r = Int32::Parse( Console::ReadLine());
	Console::WriteLine( S"Theta: ");
	theta = Int32::Parse( Console::ReadLine() );
	x = r * Math::Cos(theta);
	y = r * Math::Sin(theta);
	Console::Write( S"X: {0}", x.ToString());
	Console::Write( S"Y: {0}", y.ToString());
	return 0;
   }
   if ( choice == B)
   {
    Console::WriteLine( S"X: ");
	x = Int32::Parse( Console::ReadLine() );
	Console::WriteLine( S"Y: ");
	y = Int32::Parse( Console::ReadLine() );
	r = Math::Sqrt(Math::Pow(x, 2)+Math::Pow(y, 2));
	theta = Math::Atan(y/x);
return 0;
   }
	}
}