Introduction
A simple calculator with managed visual c++ in studio 2005.
Background
Using the code
I used a class for items(item.h) . In this class are stored the two number into property and the result:
property double nr1;
property double nr2;
The operations like :asin,cos,power,pi,plu,divide,sqrt etc. are edited into inherited class from items:
#pragma once
#include "Items.h"
using namespace System;
public ref class asinus : public Items
{
public:
asinus(void)
{
}
double^ asin(double a)
{
return Math::Asin(a);
}
};
<<>>In the base class i used 6 boolean variable for the precedent operation:
>
bool plus;
bool minus;
bool produs;
bool divide;
bool sin;
bool prec;
For button equal:
private: System::Void btnegal_Click(System::Object^ sender, System::EventArgs^ e)
{
prec = false;
if(plus == true)
{
this->txtRes->Text = Convert::ToString(p.aduna(i.nr1,i.nr2));
}
else if(minus == true)
{
this->txtRes->Text = Convert::ToString(m.scadere(i.nr1,i.nr2));
}
else if(produs == true)
{
this->txtRes->Text = Convert::ToString(pr.inmultire(i.nr1,i.nr2));
}
else if(divide == true)
{
this->txtRes->Text = Convert::ToString(d.impartire(i.nr1,i.nr2));
}
}
I have a function for operaton click:
private: System::Void Operation_Click(System::Object^ sender, System::EventArgs^ e)
{
if(prec == false)
{
i.nr1 = Convert::ToDouble(this->txtRes->Text);
}
if(prec == true)
{
i.nr2 = Convert::ToDouble(this->txtRes->Text);
}
}
History
The first version...keeping for future ...
All ze best for all programmers ...:)
The programming no have limits, only limit is imposed by our minds and hidden benefits ...
