formatting placeholders, columns and show commas, no decimals

Question

Below is my current output following my current source code. According to my assignment, after it writes the calculation for when nCount=4, it should go to a new line like in the picture of the sample program. I'm not sure how to do that kind of formatting, also I need to show just commas. when I use {0:n} it shows .00 at the end of the number, and I don't want that.

Code:

static void CalculateK(uint nCount)
{
  uint kSum = 0;
  double kCalc = 0;
  double k = 1;
  for(int j=1;j<=nCount;j++)
  {
    kCalc = Convert.ToUInt32(Math.Ceiling((1000) * Math.Pow(Math.E, -k / 20)));
    fileOut.Write("{0,2}. {1,3} ", j, kCalc);
    kSum += Convert.ToUInt32(kCalc);
    k++;
  }
  fileOut.WriteLine();
  fileOut.WriteLine("Sum = {0,5:g}",kSum);
}

Output:

Props to you for actually trying to solve your homework unlike others that have asked here. :) — jegtugado, Aug 26 '16 at 03:05
thanks lol. this is the last part i need, was never taught it in class. we learned the formatting codes, currency, float, number, etc. but I've never seen how to make it return to a new line like he wants. — Jonathan Butler, Aug 26 '16 at 03:08
Just do `string.Format("{0:n0}", 9876);` it will leave no digits after the decimal point. Gotten from [.NET String.Format() to add commas in thousands place for a number](http://stackoverflow.com/questions/105770/net-string-format-to-add-commas-in-thousands-place-for-a-number). In your case, change `fileOut.WriteLine("Sum = {0,5:g}",kSum);` to `fileOut.WriteLine("Sum = " + string.Format("{0:n0}",kSum));` — Keyur PATEL, Aug 26 '16 at 03:26

score 0 · Accepted Answer · answered Aug 26 '16 at 03:16

Okay here's the solution.. You're so close! I modified this to a console project. Change as necessary.

    static void Main(string[] args)
    {
        do
        {
            Console.Write("Input a number: ");
            uint input = uint.Parse(Console.ReadLine());
            CalculateK(input);
            Console.ReadLine();
            Console.Clear();
        } while (true);
    }

    static void CalculateK(uint nCount)
    {
        uint kSum = 0;
        double kCalc = 0;
        double k = 1;
        for (int j = 1; j <= nCount; j++)
        {
            kCalc = Convert.ToUInt32(Math.Ceiling((1000) * Math.Pow(Math.E, -k / 20)));
            Console.Write("{0,2}. {1,3} ", j, kCalc);
            if(j % 4 == 0)
            {
                Console.WriteLine(); // If the counter is divisible by 4 then add a new line.
            }
            kSum += Convert.ToUInt32(kCalc);
            k++;
        }
        Console.WriteLine();
        Console.WriteLine("Sum = {0}", kSum.ToString("0,0")); // Use the ToString method and add your desired format instead.
    }

formatting placeholders, columns and show commas, no decimals

Code:

Output:

1 Answers1