Aligning Decimals Problem in C++

[iToastie]

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.

[Nepomuk]

Hi iToastie and welcome to bytes.com!

The modifiers setw and setprecision are valid only for the next stream object to come; in your case this is endl. So, you'll have to put it before every entry if you want it to be used for every entry.

[weaknessforcats]

I did this:

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

However, I am using Visual Studio which uses a variable font in the editor. So what you see in the code is not what is displayed. I added an x to each line ad adjusted the display until the x's lined up vertically. Then you data displays lined up on the decimal point.

If you change the editor font to a fixed font like Courier then you don't need to fiddle like I did.