// name:		Billy Miller
// date:		December 16, 2006
// description:	This program will calculate the sum, difference, product, or divisor of two user-provided numbers.
// filename:	vccalc.cpp - Very Cheap Calculator

#include <iostream>
using namespace std;

int main(void)
{
	// define variables
	float number_1;
	float number_2;
	float answer;
	unsigned int operation;
	int add;
	int subtract;
	int multiply;
	int divide;

	// start of screen output
	cout << "Welcome to Very Cheap Calculator." << endl;
	cout << "*********************************" << endl;

	// user input
	cout << "Please enter number 1: ";
	cin >> number_1;
	cout << endl;
	cout << "Operation list: " << endl;
	cout << "\t1. Addition (+)" << endl;
	cout << "\t2. Subtraction (-)" << endl;
	cout << "\t3. Multiplication (*)" << endl;
	cout << "\t4. Division (/)" << endl;
	cout << "Choose an operation: "; 
	cin >> operation;
	cout << endl;

	// if statements
	if(operation == 1) // addition
	{
		cout << "Please enter number 2: ";
		cin >> number_2;
		cout << endl;
		answer = number_1 + number_2;
		cout << number_1 << " + " << number_2 << " = " << answer << endl;
	}
	if(operation == 2) // subtraction
	{
		cout << "Please enter number 2: ";
		cin >> number_2;
		cout << endl;
		answer = number_1 - number_2;
		cout << number_1 << " - " << number_2 << " = " << answer << endl;
	}	
	if(operation == 3) // multiplication
	{
		cout << "Please enter number 2: ";
		cin >> number_2;
		cout << endl;
		answer = number_1 * number_2;
		cout << number_1 << " * " << number_2 << " = " << answer << endl;
	}	
	if(operation == 4) // division
	{
		cout << "Please enter number 2: ";
		cin >> number_2;
		cout << endl;
		answer = number_1 / number_2;
		cout << number_1 << " / " << number_2 << " = " << answer << endl;
	}
	if(operation > 4 || operation < 1) // fallback for invalid operation
	{
		cout << "Invalid Selection. Please run the program again and choose a valid operation." << endl;
	}
	cout << endl;
	system("PAUSE");
	return 0;
}