lesson4part1.txt

#include <cmath>
#include <iostream>
#include <iomanip>
#include <vector>
using namespace std;

//this program will take a mass (kg) as an input and output the weight (N) of the object on the earth, moon, and venus
int main()
{
	const double earthAccel = 9.81, moonAccel = 1.62, venusAccel = 8.87; //our constants
	double mass; //we'll ask the user for this

	//now we'll make some vectors to hold all the relevant data
	vector<double> acceleration = { earthAccel, moonAccel, venusAccel };
	vector<double> weight; //this will hold earthWeight, moonWeight, venusWeight
	vector<string> location = { "Earth", "Moon", "Venus" };

	//prompts user for input, and outputs it in desired format
	cout << "Enter the mass in kg\n";
	cin >> mass;
	cout << "The mass is " << fixed << setprecision(4) << mass << " kg\n";

	/*so long as our mass is greater than 0, for each index in the vectors,
	we will cycle through our outputs*/
	if (mass > 0)
	{
		//sets our output table up
		cout << left << setw(8);
		cout << "Location";
		cout << right << setw(15); /*the instructions said width of 14 for this column,
								   but the tests came up with 14 wrong and 15 right*/
		cout << "Weight (N)\n";

		//now to loop through the vectors' indexes and output into our table
		for (int i = 0; i < 3; i++)
		{
			weight.push_back(mass * acceleration[i]); //will load our weight values into our weight vector
			cout << left << setw(8) << location[i];
			cout << right << setw(14) << fixed << setprecision(4) << weight[i] << endl;

		}
		if (weight[0] > 1500)
		{
			cout << "The object is heavy\n";
		}
		else if (weight[0] < 5)
		{
			cout << "The object is light\n";
		}
	}

	else
		cout << "The mass must be greater than zero\n";



	return 0;
}