C# help please

4. Convert the following class diagram into an equivalent one and then write C# or Java code to implement the class diagram, including all functions listed in the diagram (10 points) Order odate:DateTime oid:int promiseDate:DateTime Orderline 1.. Product color:string desc:string qty:double sku:string unitcost:double Getorder Amount:double Orderline qty:double GetItemValue(:double GetUnitCost:double GetQtyO:double