C++ Homework Help

[Towstie]

So I have a basic assignment...

// File:     program2.cpp
// Author:   Name
// Course:   CSC 135
// Date:     September 25, 2013
// Purpose:  The program will ask for the number of acres and actual property value per acre. It will calculate total actual value, assessment value and the property tax.

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

const double TAXRATE = .064;

int main()
{
  int acresOwned;
  double valuePerAcre, totalValue, assmntValue, propTax;

  // Inputs
  cout << "Enter the number of acres owned: ";
  cin >> acresOwned;
  cout << "Enter the actual value per acre: ";
  cin >> valuePerAcre;

  // Calculations
  totalValue = valuePerAcre * acresOwned;
  assmntValue = totalValue * .60;
  propTax = assmntValue / 100 * TAXRATE;

  // Outputs
  cout << endl;
  cout << setw(8) << fixed << setprecision(2) << endl;
  cout << "Acres owned: " << acresOwned << endl;
  cout << "Total actual value: $ " << totalValue << endl;
  cout << "Assessment value:  $ " << assmntValue << endl;
  cout << "Property tax: $ " << propTax << endl;

  return 0;
}

I'm curious if anyone knows how I can line up the outputs to their decimals? the current setw and setprecision arn't doing anything.

[Badpaladin]

//edit derp, I didn't read your question correctly.

To line things up by the decimal you're going to have to play around with whitespace. If you can guarantee every number will have the same precision, it's not bad.

[Bleah]

Some manipulators are sticky, but most aren't. You generally want to use them right before you output the value you want to manipulate.

This may be what you're looking for:

  cout << endl;
  cout << fixed << setprecision(2) << endl;
  cout << setw(25) << right << "Acres owned:   "        << setw(8) << acresOwned << endl;
  cout << setw(25) << right << "Total actual value: $ " << setw(8) << totalValue << endl;
  cout << setw(25) << right << "Assessment value: $ "   << setw(8) << assmntValue << endl;
  cout << setw(25) << right << "Property tax: $ "       << setw(8) << propTax << endl;

[Towstie]

Some manipulators are sticky, but most aren't. You generally want to use them right before you output the value you want to manipulate.

This may be what you're looking for:

  cout << endl;
  cout << fixed << setprecision(2) << endl;
  cout << setw(25) << right << "Acres owned:   "        << setw(8) << acresOwned << endl;
  cout << setw(25) << right << "Total actual value: $ " << setw(8) << totalValue << endl;
  cout << setw(25) << right << "Assessment value: $ "   << setw(8) << assmntValue << endl;
  cout << setw(25) << right << "Property tax: $ "       << setw(8) << propTax << endl;

I actually figured it out and got it to work, looks very similar to this, so I just cleaned it up with how yours looks!

Thanks a lot for the help guys