public string getInformationPname(ListPlayer P) { Console.WriteLine("Enter the name of the player whom you want to have information: "); string n = Console.ReadLine(); int pos = 0; while (!(P.onList(n))) { Console.WriteLine("This player is not playing in this game !"); Console.WriteLine("Please write a correct name."); Console.WriteLine("If you want to leave, press 'z'"); n = Console.ReadLine(); if (n == "z") { return(null); } } return("Here is all the informations about this player \n" + P.getPlayerByName(n)); }