StringFormatter.cs
using System.Linq;
namespace MyExercise_2s
{
public class StringFormatter
{
private string m_joinDelimiter = ",";
public void Configure(string joinDelimiter)
{
m_joinDelimiter = joinDelimiter;
}
public string Join(object[] args)
{
return string.Join(m_joinDelimiter, args.Select(arg => arg.ToString()).ToArray());
}
}
}