public int Remove(EnglishWord value) { if (!_englighSet.Contains(value)) { System.Console.WriteLine($"Value: {value} is already removed"); return(1); } else { _englighSet.Remove(value); return(0); } }
public int Add(EnglishWord value) { Match m = regex.Match(value.word); if (!m.Success) { System.Console.WriteLine("Only alphabet is accepted."); return(1); } if (_englighSet.Contains(value)) { System.Console.WriteLine($"Duplicate."); return(1); } else { _englighSet.Add(value); return(0); } }