interfaces help

blackeagle · 11-27-2013, 01:13 AM

@darthjames226 well yes but maybe it was a bigger value i always use double instead of float int instead of byte ... is that wrong ?

now i moved to start with the next part
i need to make this class
Class Articles: general class of all items
Properties: number (automatically generated during the creation of an article), purchase price, sale price and name.
Methods (other than the manufacturer):
calculating the rate of return ((prixVente - purchasePrice) / purchasePrice)
toString (): return the name and price of the item
This class does not implement any interface.

i did this

Code:
public class Articles {
    private int nbr;
    private int purchasePrice;
    private int salePrice;
    private String name;
    
    public Articles(int nbr,int purchasePrice,int salePrice,String name){
        this.nbr=nbr;
        this.purchasePrice=purchasePrice;
        this.salePrice=salePrice;
        this.name=name;
    }
    
    public  int getNbr(){
        return nbr;
    }
    public void setNbr(int nbr){
        this.nbr=nbr;
    }
    public int getPurchasePrice(){
        return purchasePrice;
    }
    public void setPurchasePrice(int purchasePrice){
        this.purchasePrice=purchasePrice;
    }
    public int getSalePrice(){
        return salePrice;
    }
    public void setSalePrice(int salePrice){
        this.salePrice=salePrice;
    }
    public String getName(){
        return name;
    }
    public void setName(String name){
        this.name=name;
    }
    public double calculateRateOfReturn(){
        double tauxRendement=((salePrice-purchasePrice)/purchasePrice);
        return tauxRendement;
    }
    
}

i didnt understand what he mean with this

Code:
toString (): return the name and price of the item

and why do i need to make this isnt this the same as the get methods i made ?

interfaces help
Author Message