C# (CSharp) CheckingAccountBusiness примеры использования

Пример #1

 public override void Deposit(double value)
 {
     Balance += CheckingAccountBusiness.CalculateDeposit(value);
 }

Пример #2

 public override void Serve(double value)
 {
     Balance -= CheckingAccountBusiness.CalculateServe(value);
 }