private static void DisplayCallHistory(GSM myGSM)
{
StringBuilder sb = new StringBuilder();
Console.WriteLine("{0,25}{1,25}{2,20}", "Begin of call", "Dialed Phone Number", "Call Duration /s/");
Console.WriteLine(new string('_', 70));
foreach (Call call in myGSM.CallHistory)
{
sb.Append(call.ToString() + '\n');
}
Console.WriteLine(sb);
Console.WriteLine(new string('_', 70));
Console.WriteLine(
"{0,25}{1,25}{2,16} min",
"Total duration of calls: ",
string.Empty,
myGSM.CalculateCallsDuration());
Console.WriteLine(
"{0,25}{1,25}{2,20:C}",
"Total price of calls: ",
string.Empty,
myGSM.CalculateTotalPriceOfCalls(0.37m));
}