interfaces help - Printable Version

interfaces help - Printable Version

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interfaces help - blackeagle - 11-25-2013

this is a part of en exercice i got for uni

interfaces
Salable per kilogram: the interface for selling items per kilogram
methods:
Sale: This method receives the quantity sold of the item and change the stock
Salable piece: the interface for items that sell by pieces
methods:
Sale: This method receives the number of pieces sold of the item and change the stock

Likely to be sold in balance
methods:
start balance: This method lowers the price of the item by the given percentage
complete the balance: This method increases the price of the item by the given percentage

sry if there's any errors here this is translated from french to english using google translate blame google if theres anything wrong Smile

ok so i need to do those interfaces i did the following but since its the first time i work with interface i wanted to check if my work is good b4 moving to next part of the exercice !!

Code:
public interface SalablePerKilogram {
    public  void sale(double quantitySold);
}

public interface SalablePiece {
    public void vendre(double nbrOfPiecesSolde);
}

public interface SoldeInBalance {
    public void startBalance(double pourcentage);
    public void completeBalance(double pourcentage);
}

ok so i need to do those interfaces i did the following but since its the first time i work with interface i wanted to check if my work is good b4 moving to next part of the exercice !!

Code:
public interface SalablePerKilogram {
    public  void sale(double quantitySold);
}

public interface SalablePiece {
    public void vendre(double nbrOfPiecesSolde);
}

public interface SoldeInBalance {
    public void startBalance(double pourcentage);
    public void completeBalance(double pourcentage);
}

RE: interfaces help - blackeagle - 11-26-2013

guys i really need help here as fast as possible !! im already too late to send the exercice to my teacher so any help will be good !!

RE: interfaces help - Deque - 11-26-2013

Why did you choose double? Reconsider this. You don't need floating point numbers everywhere.
Other than that it looks good.

RE: interfaces help - blackeagle - 11-26-2013

i chose double bcs it might be 0.5 kilogram !! thx for ur reply i'll work on the second part tonight

RE: interfaces help - darthjames226 - 11-27-2013

Looks good. You can still get 0.5 using float rather than double