C# Calculator Class

Question

I was given this homework assignment, which I have been having a hard time with. The form was written and we had to write the class. Currently when I run the program my equa

Answer 1

The main problem I see with your code is that you are only adding one of your operands, So for example 8 + 8 will always equal 8 for example.You have to do something like this ( included Add and reciprocal functions only):

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Calculator
{
public class Calculator
{

    public Decimal displayValue;
    public Decimal currentValue;

    private Decimal Operand_1;
    private Decimal Operand_2;

    private bool Operand_1_Added = false;
    private bool Operand_2_Added = false;

    private string Operation = "";

   private void AddOperand(Decimal Operand)
    {
            if(Operand_1_Added) 
                {
                  Operand_2 = Operand;
                  Operand_2_Added = true;
                }
            else {
                  Operand_1 = Operand;
                  Operand_1_Added = true;
                  currentValue = Operand_1;
                 }
     }



   public void Add(Decimal Arg1)
    {  
        this.AddOperand(Arg1);
        Operation = "Addition";
    }

   public void Reciprocal(Decimal Arg)
    {
     this.AddOperand(Arg);
     Operation = "Reciprocal";
    }


     public void Clear()
     {
         currentValue = 0;
         displayValue = 0;
         Operand_1 = 0;
         Operand_2 = 0;
     }

     public void Equals()
      {
         switch(Operation)
             {
                 case "Addition": 
                          currentValue = Operand_1 + Operand_2;
                          break;
                 case "Reciprocal":
                          currentValue = 1/Operand_1;
                          break;
                 default: break; 
              }
      }

   public void Equal(Decimal displayValue)
   {
    currentValue = displayValue;
   }
     public decimal CurrentValue
     {
       get
          {
           return currentValue;
          }

     }
}

Haven't tested code but this should work with the form class.