C# (CSharp) ISplitBillCalculation примеры использования

Пример #1

 public SplitBillViewModel()
 {
     _billCalculation = new BillCalculation();
     CalculateCommand = new MvxCommand(Calculate);
 }

Пример #2

 public SplitBillViewModel(ISplitBillCalculation billCalculation)
 {
     _billCalculation = billCalculation;
 }