Lehekülje ITI0011-2016:harjutus 10 lihtsam lähteteksti vaatamine


== Üldine ==

Kaitsmised: 21. - 22. märts<br />
Kaust gitis: EX10A<br />

See on lihtsam variant harjutus 10st ([[ITI0011:harjutus 10]])

== Ülesanne ==

Realiseerida <code>ExpensiveCarShop</code>, mis implementeerib <code>CarShop</code> liidest. Realiseeritav funktsionaalsus:
* auto müümisel pannakse selle hinnale 10% otsa. Ehk kui auto hind on 100 eurot, siis <code>sellCar</code> selle auto kohta tagastab 110.
* <code>sellCar</code> tagastab suvalise auto nimetatud mudeliga. Kui mudel on <code>null</code>, siis tagastab <code>null</code>. Auto müümisel peab selle hind olema 10% kallim (ehk siis objekt, mis tagastatakse, peab olema 10% suurema hinnaga).
* <code>getAmount</code> tagastab etteantud mudeliga autode koguse poes. Kui etteantud mudel on <code>null</code>, siis tagastab kõikide autode koguse.


== Mall ==

CarShop.java:
<source lang="java">
/**
 * Car shop interface.
 */
public interface CarShop {
    /**
     * Car shop buys a car. Car will be added to the owned cars.
     * @param car Car to buy.
     */
    void buyCar(Car car);

    /**
     * Car shop sells a car with the specified model.
     * Car will be removed from the owned cars.
     * @param model Car with the specified model is sold.
     * @return Car to be sold. Null if no car with the specified model found.
     */
    Car sellCar(String model);

    /**
     * Gets the amount of cars with specified model. If no cars
     * with specified model exist, returns 0. If specified model is null,
     * returns the amount of all the cars.
     * @param model Model to count. If null, the amount of all the cars is returned.
     * @return The amount of cars with specified model. If model is null,
     * total amount of cars.
     */
    int getAmount(String model);
}

</source>

Car.java
<source lang="java">
/**
 * Car object which is operated by CarShop.
 */
public class Car {
    /**
     * Model of the car.
     */
    private String model;

    /**
     * Price of the car.
     */
    private double price;

    /**
     * Constructor.
     * @param model Model of the car.
     * @param price Price of the car.
     */
    public Car(String model, double price) {
        this.model = model;
        this.price = price;
    }

    /**
     * Gets the price of the car (in euros).
     *
     * @return Car price.
     */
    public double getPrice() {
        return price;
    }

    /**
     * Sets the price of the car (in euros).
     *
     * @param price Car price.
     */
    public void setPrice(double price) {
        this.price = price;
    }

    /**
     * Gets the model of the car.
     *
     * @return Model of the car.
     */
    public String getModel() {
        return model;
    }

    /**
     * Sets the model of the car.
     *
     * @param model Model of the car.
     */
    public void setModel(String model) {
        this.model = model;
    }

}

</source>