Практика4.2

package com.company;

public class Main {

    public interface Instrument {
        public void play();
        public String KEY="До мажор";
    }

    public static class Guitar implements Instrument {
        int StringsQuantity = 6;
        public void play() {
            System.out.println("Играет гитара, у неё " +StringsQuantity+ " струн");
        }
    }

    public static class Drum implements Instrument {
        String Size = "большого";
        public void play() {
            System.out.println("Играет барабан, он " +Size+ " размера");
        }
    }

    public static class Pipe implements Instrument {
        int Diameter = 40;
        public void play() {
            System.out.println("Играет труба диаметром " +Diameter);
        }
    }

    public static void main(String[] args) {
        Guitar Acoustic = new Guitar();
        Drum Tambourine = new Drum();
        Pipe Tube = new Pipe();
        Instrument[] Band = new Instrument[] {Acoustic, Tambourine, Tube};
        for (int i=0; i<3; i++) {
            Band[i].play();
        }
    }
}