public class Product {

    private String model;
    private String manufacturer;
    private int width;
    private int height;
    private int depth;

    public Product(String model, String manufacturer) {
        this.model = model;
        this.manufacturer = manufacturer;
    }
}
    class Monitor extends Product{

        private int size;
        private String resolution;
        public Monitor(String model, String manufacturer) {
            super(model, manufacturer);
        }

        public Monitor(String model, String manufacturer, int size, String resolution) {
            super(model, manufacturer);
            this.size = size;
            this.resolution = resolution;
        }

        public void drawPixelAt(int x, int y, String color){
            System.out.println(String.format("Drawing pixel at %d,%d in color %s ", x, y, color));
        }
    }

    class Motherboard extends Product{

        private int rmaSlots;
        private int cardSlots;
        private String bios;

        public Motherboard(String model, String manufacturer) {
            super(model, manufacturer);
        }

        public Motherboard(String model, String manufacturer, int rmaSlots, int cardSlots, String bios) {
            super(model, manufacturer);
            this.rmaSlots = rmaSlots;
            this.cardSlots = cardSlots;
            this.bios = bios;
        }

        public void loadProgram (String programName){
            System.out.println("Program " + programName + " is now loading...");
        }
    }

    class ComputerCase extends Product{

        private String powerSupply;
        public ComputerCase(String model, String manufacturer) {
            super(model, manufacturer);
        }

        public ComputerCase(String model, String manufacturer, String powerSupply) {
            super(model, manufacturer);
            this.powerSupply = powerSupply;
        }

        public void pressPowerButton(){
            System.out.println("Power button pressed");
        }
    }