I had been code so far for the class of Calculator program (attacked zip file)

Here is my code below:Please Help!!!!

namespace Calculator
{
    public class Calculator
    {

            public class Calculator
    {
            public decimal currentValue;
            public decimal displayValue;              
            public decimal btnNumber;
            public decimal newValue;
            public string Add;
            public string Subtract;
            public string Multiply;
            public string Divide;
            public string Squaroot;
            public string Reciprocal;
            public decimal Equals;

            public Calculator()
            {

            }

            public Calculator(string btnSign, decimal currentValue, decimal newValue, decimal displayValue)

    {

           this.newValue = newValue;
           this.btnSign = btnSign;
           this.currentValue = currentValue;
           this.displayValue = displayValue;


            }

        public string btnSign
        {
            get
            {
                return btnSign;
            }
            set
            {
                btnSign = value;
            }
        }
      }

        public decimal btnNumber
        {
            get
            {
                return btnNumber;
            }
            set
           {
               btnNumber = value;
            }
        }

        public decimal newValue
        {
            get
            {
                return newValue;
            }

            set
            {
                newValue = value;
            }
        }

        public decimal CurrentValue
        {
            get
            {
                return CurrentValue;
            }

            set
            {
                CurrentValue = value;
            }
        }

        public static int Add(int newValue, int currentValue)
        {
            return newValue + currentValue;   
        }


        public static int Subtract(int newValue, int currentValue)
        {
            return newValue + currentValue;
        }

         public static int Multiply(int newValue, int currentValue)
        {
            return newValue + currentValue;
        }

        public static int Divide(int newValue, int currentValue)
        {
            return newValue + currentValue;
        }



        public decimal displayValue
        {
            get
            {
                return displayValue;
            }
            set
            {
                displayValue = value;
            }
        }
        public static decimal Equals(decimal currentValue, string btnSign, decimal newValue, decimal displayValue)
        {

            if (btnSign == "+")
            {
                displayValue = newValue + currentValue;
            }
            else if (btnSign == "-")
            {
                displayValue = newValue - currentValue;                
            }
            else if (btnSign == "*")
            {
                displayValue = newValue * currentValue;                
            }
            else if (btnSign == "/")
            {
                displayValue = newValue / currentValue;   
            }

            else if (btnSign == "Sqrt")
            {                
                displayValue = currentValue * currentValue;   
            }

            else if (btnSign == "1/x")
            {
                displayValue = 1 / currentValue;
            }


            return displayValue;
        }


        public static string GetsDisplayText(decimal displayValue)
        {
            return displayValue.ToString();
        } 
    } 
}

Edited 4 Years Ago by Ezzaral: Code formatting. Please read "Formatting Help"(http://www.daniweb.com/community/syntax) to learn about formatting.

And your question is?
You know, we wont do the code instead of you - be sure about that. So if you need any help, ask us, and would be more the glad to help.

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