Problem in assigning a variable value to another one

Question

hi
i am just trying to develop class calculating the selling price of car as 15% of the purchase price addeed on the purchase price
and i developed the next code which is a part of longer code :
package cardealer;
public class Car4Sale extends Car {
  public static void main(int[] args) {
    Car4Sale pur , sell; //pur is purchasing price , sell is selling price
    sell = pur *(1+ 0.15) ;
}the proplem is in the line : sell = pur *(1+ 0.15) ;
the program says: the variable pur might have not been intialized . operator * can not be applied .
Note: when i delete this line the variable pur returns intialized in the upper line

Answer 1

Here is a simple example of what (i think) your
trying to do.
//Car class
public class Car
     private double purchasePrice;
     private String type;
     public Car(double price, String type)
          this.purchasePrice=price;
          this.type=type;
     public double getPurchasePrice()
          return purchasePrice;
     public void setPurchasePrice(int price)
          this.purchasePrice = price;
     public String getType()
          return type;
     public void setType(String type)
          this.type = type;
//Car Sales class
public class CarSales
     private Car car = new Car(100,"Porsche");
     private double sellingPrice;
     public static void main(String[] args)
          CarSales cs = new CarSales();
System.out.println("Car Type :"
:" +cs.car.getType());
System.out.println("Car Purchase Price
ce :"+cs.car.getPurchasePrice());
System.out.println("Car Selling price
ce
:"+cs.getSellingPrice(cs.car.getPurchasePrice()));
     public double getSellingPrice(double purchasePrice)
          return purchasePrice += (purchasePrice / 100) *15;
}modify it to suit your needs.thank you for this great reply but what i am really looking for is to enter attributes for the car. the attributes are number , manufacturer , size, color . after then adding the purchase price in a subclass and calculating the selling price .
Ihave no problem whith input code but i am not sure about it is how to deal with these attributes