Блинов. Глава 4. Вариант А. 7 (*). Создать объект класса Компьютер, используя классы Винчестер, Дисковод, Оперативная память, Процессор. Методы: включить, выключить, проверить на вирусы, вывести на консоль размер винчестера.

Computer.java

public class Computer {
    private Processor processor;
    private List<Ram> ramList = new ArrayList<>();
    private List<HardDisc> hardDiscsList = new ArrayList<>();
    private boolean power = false;

    public Computer(Processor processor, List<Ram> ramList, List<HardDisc> hardDiscsList) {
        this.processor = processor;
        this.ramList = ramList;
        this.hardDiscsList = hardDiscsList;
    }

    public void switchOn() {
        power = true;
    }

    public void switchOff() {
        power = false;
    }

    public String checkVirus() {
        //process check for virus
        return "Checked";
    }

    public void getSizeHardDisc() {
        int size = 0;

        for (HardDisc hardDisc : hardDiscsList) {
            size += hardDisc.getSize();
        }

        System.out.println(size);
    }
}

ComputerRunner.java

public class ComputerRunner {

    public static void main(String[] args) {
        List<Ram> ramList = new ArrayList<>();
        ramList.add(new Ram(2));
        ramList.add(new Ram(2));

        List<HardDisc> hardDiscList = new ArrayList<>();
        hardDiscList.add(new HardDisc(500));
        hardDiscList.add(new HardDisc(1000));

        Computer computer = new Computer(new Processor(), ramList, hardDiscList);
    }
}

HardDisc.java

public class HardDisc {
    private final int size;

    public HardDisc(int size) {
        this.size = size;
    }

    public int getSize() {
        return size;
    }
}

Processor.java

public class Processor {
}

Ram.java

public class Ram {
    private final int size;

    public Ram(int size) {
        this.size = size;
    }
}