<%@ page Language="c#" runat="server" %>
public class ScientificCalculator : Calculator
{
public void SquareRoot()
{
double root = Math.Sqrt(CurrentValue);
Clear();
Add(root);
}
}
public class Calculator
{
private double currentValue;
public double CurrentValue
{
get
{
return currentValue;
}
}
public void Add(double addValue)
{
currentValue += addValue;
}
public void Subtract(double subValue)
{
currentValue -= subValue;
}
public void Multiply(double multValue)
{
currentValue *= multValue;
}
public void Divide(double divValue)
{
currentValue /= divValue;
}
public void Clear()
{
currentValue = 0;
}
}
void Page_Load()
{
ScientificCalculator MyCalc = new ScientificCalculator();
Response.Write("Created a new ScientificCalculator object.
");
Response.Write("Current Value = " + MyCalc.CurrentValue);
MyCalc.Add(23);
Response.Write("
Added 23 - MyCalc.Add(23)
");
Response.Write("Current Value = " + MyCalc.CurrentValue);
MyCalc.Subtract(7);
Response.Write("
Subtracted 7 - MyCalc.Subtract(7)
");
Response.Write("Current Value = " + MyCalc.CurrentValue);
MyCalc.Multiply(3);
Response.Write("
Multiplied by 3 - MyCalc.Multiply(3)
");
Response.Write("Current Value = " + MyCalc.CurrentValue);
MyCalc.Divide(4);
Response.Write("
Divided by 4 - MyCalc.Divide(4)
");
Response.Write("Current Value = " + MyCalc.CurrentValue);
MyCalc.SquareRoot();
Response.Write("
Square root - MyCalc.SquareRoot()
");
Response.Write("Current Value = " + MyCalc.CurrentValue);
MyCalc.Clear();
Response.Write("
Cleared - MyCalc.Clear()
");
Response.Write("Current Value = " + MyCalc.CurrentValue);
}