//How to pass arguments to a method in another class

//this is the main form code

private: System::Void optAdd_CheckedChanged(System::Object^  sender, System::EventArgs^  e) 
	
			{
			
				  if (optAdd->Checked == true)
                mathOperand = '+';
			
			}
	
	private: System::Void optSubtract_CheckedChanged(System::Object^  sender, System::EventArgs^  e) 
			{
			 if (optSubtract->Checked == true)
                mathOperand = '-';
			
			}
	private: System::Void optMultiply_CheckedChanged(System::Object^  sender, System::EventArgs^  e) 
	
			{
	
					if (optMultiply->Checked == true)
						mathOperand = '*'; 
			}
	private: System::Void optDivide_CheckedChanged(System::Object^  sender, System::EventArgs^  e) 
	
			{
					if (optDivide->Checked == true)
						mathOperand = '/'; 
		
			}

	
	private: System::Void btnCompute_Click(System::Object^  sender, System::EventArgs^  e) 
			{
			
				  try
				   { 
					firstNumber = Convert::ToDouble(txtNumber1->Text);
					secondNumber = Convert::ToDouble(txtNumber2->Text);

					//---use the function DoCompute inside the Class Module called DoMath.cs
					txtAnswer->Text =Convert::ToString(getAnswer->DoCompute(firstNumber, secondNumber, mathOperand));
					}
				catch (Exception^ ex)
				   { 
					MessageBox::Show("Sorry, but I can't manage that operation...try again." + ex->Message,
					"System Message",MessageBoxButtons::OK,MessageBoxIcon::Error);
               
					btnClear->PerformClick();      //simulates clicking the clear button!
					txtNumber1->Focus();
					}
	//*******************************************************************************

//this is the DoMath class code

	
#include "Form1.h"

using namespace System;
using namespace System::Windows::Forms;


public ref class DoMath sealed

{
public:

	DoMath(void)
	{
	}


	 public: double  DoCompute(double x, double y , char z  ) 
            {
                double Result = 0;

                switch (z)
                { 
                    case '+':
                        Result = x + y;
                        break;
                    case '-':
                        Result = x - y;
                        break;
                    case '*':
                        Result = x * y;
                        break;

                    case '/':
                        Result = x / y;
                        break;
                }
                return Result;
                
            }