//opens gradebook by calling Gradebook.Load() and sends it to GradebookUI.CommandPrompt()
public static void OpenCommand(string command)
{
var parts = command.Split(' ');
if (parts.Length != 2)
{
Console.WriteLine("Invalid Command, requires a name.");
return;
}
var name = parts[1];
var gradeBook = Gradebook.Load(name);
if (gradeBook == null)
{
return;
}
GradebookUI.CommandPrompt(gradeBook);
}
