C# --Parse input

parseInput.cs

// ParseSequenceWithSplit – input a series of numbers separated by commas, parse them into integers //and output the sum
namespace ParseSequenceWithSplit
{
	using System;
	class Program
	{
public static void Main(string) args)
{
	// prompt the user to input a sequence of numbers
	Console.WriteLine(“Input a series of numbers separated by commas:”);
	// read a line of text
	string input = Console.ReadLine()
	Console.WriteLine();
	// now convert  the line into individual segments based upon either commas or spaces
	char[] cDividers = {‘,’, ‘ ‘};
	string[] segments = input.Split(cDividers);
	// convert each segment into a number
	int nSum = 0;
	foreach(string sin segments)
	{
		// (skip any empty segments)
		if (s.Length > 0)
		{
			// skip strings that aren’t numbers
			if (IsAllDigits(s))
			{
				// convert the string into a 32-bit int
				int num = Int32.Parse(s);
				Console.WriteLine(“Next number = {0}”, num);
				// add this number into the sum
				nSum + = num;
				}
			}
		}
		// output the sum
		Console.WriteLine(“Sum = {0}”, nSum);
		// wait for user to acknowledge the results
		Console.WriteLine(“Press Enter to terminate…”);
		Console.Read();
		}
		





// IsAllDigits – return a true if all of the characters in the string are digits
	
public static bool IsAllDigits(string sRaw)
	{
// first get rid of any benign characters at either end; if there’s nothing left then we
 // don’t have a number
string s = sRaw.Trim();
If (s.Length == 0)
{
	return false;
}
// loop through the string
for (int index = 0; index < s.Length; index++)
{
	// a non-digit indicates that the string probably is not a number
if (Char.IsDigit(s[index]) == false)
{
	return false;
}
	}
	// no non-digit found; its probably OK
	return true;
	}
       }
}

Output:
Input a series of numbers separated by commas:
1,2, a, 3  4

Next number = 1
Next number = 2
Next number = 3
Next number = 4
Sum = 10
Press Enter to terminate