/*
File: ohm.cpp
Title: Ohm's law
Author: ColdDeath
Date: 07/09/05 19:47
Description: This program demonstrates Ohm's law. (I=V/R)
V = voltage in Volts, R = resistance in Ohms, I = current in ampheres
*/
#include <iostream> //needed for user input and output
using namespace std;
int VoltFind(float current, float resistance)
{
	//V=I*R
	float voltage = current * resistance;
	cout<<"\nVoltage: "<<voltage<<endl;
	return 0;
}
int ResistFind(float voltage, float current)
{
	//R=V/I
	float resistance = voltage / current;
	cout<<"\nResistance: "<<resistance<<endl;
	return 0;
}
int CurrentFind(float voltage, float resistance)
{
	//I=V/R
	float current = voltage / resistance;
	cout<<"\nCurrent: "<<current<<endl;
	return 0;
}
int main(int argc, char *argv[])
{
	float I;
	float R;
	float V;
	int menuOption;
	cout<<"Main Menu\n1. Find Voltage\n2. Find Resistance\n3. Find Current\n4. Exit"<<endl;
	cin>>menuOption;
	switch (menuOption)
		{
		case 1:
			cout<<"Current: ";
			cin>>I;
			cout<<"\nResistance: ";
			cin>>R;
			VoltFind(I, R);
			break;
		case 2:
			cout<<"\nVoltage: ";
			cin>>V;
			cout<<"Current: ";
			cin>>I;
			ResistFind(V, I);
			break;
		case 3:
			cout<<"Voltage: ";
			cin>>V;
			cout<<"\nResistance: ";
			cin>>R;
			CurrentFind(V, R);
			break;
		case 4:
			return 0;
		default:
			cout<<"Please use a correct menu option.";
			return 0;
		}
	return 0; //Exit the main function
}