Formatting an array output in c#

Question

I am trying to create a method that sums and outputs integers in an array. I understand how to sum the integers, however I am having trouble producing the desired output.

If I pass into the method 8, 3, 3 I need the output to look as follows.

For the list = <8, 3, 3> the sum is: 14

Once again I am familiar with how to sum, I am unfamiliar with how to format this. Here is my method so far...

public static void Sum(params int[] number)
{
    int total = 0;
    for (int i = 0; i < number.Length; ++i)
      {
         total = total + number[i];
      }

    Console.Write("For the list =, the sum of its elements is : {0}.", total);
    Console.Write("\n");
}   

Answer 1

Use the String.Join method to make a string with the values in the array:

string values = String.Join(", ", number);

Then just add it to the output:

Console.Write("For the list = <{0}> the sum of its elements is : {1}.", values, total);

---

Prior to framework 4 there is no overload of String.Join that can take an array of anything other than string, so if you are using an older framwork you need to turn the integers to strings:

string values = String.Join(", ", number.Select(n => n.ToString()));

Answer 2

public static void Sum(params int[] number)
{
    int total=0;
    for (int i = 0; i < number.Length; ++i) total = total + number[i];
    string ext = String.Format ("<{0}>", String.Join (",", number));

    Console.Write("For the list ={0} the sum is: {1}.",ext,  total);
    Console.Write("\n");
} 

Answer 3

There are several ways you could go to produce the desired output, one would be: public static void Sum(params int[] number)

{
    int total=0;
    StringBuild tmp="For the list =
    for (int i = 0; i < number.Length; ++i)
      {
         total = total + number[i];

      }
    Console.Write("For the list =, the sum of its elements is : {0}.", total);
    Console.Write("\n");
}   

Answer 4

This will do it:

using System;
using System.Linq;

public class Test
{
    public static void Main()
    {
        Sum(8,3,3);
    }

    public static void Sum(params int[] number)
    {
        Console.WriteLine("For the list <{0}>, the sum of its elements is: {1}", 
            string.Join(", ", number), 
            number.Sum());
    }   
}

outputs:

For the list <8, 3, 3>, the sum of its elements is: 14

Click here for a working sample