/**
 * This is an illustration of an abstract class (ModernArtist).
 * You can declare variables (e.g., artists) of this class.
 * However, you cannot instantiate it directly.
 * You must instantiate derived classes (e.g., cubist)
 *
 * NOTE: although there is an abstract method getNumber() in
 * the abstract class, in general, this is not needed in
 * an abstract class.
 */

abstract class ModernArtist {
    String name;
    int number;

    ModernArtist(String n) { name = n; }

    public String getName() {
        return name;
    }

    public abstract int getNumber();
}

class cubist extends ModernArtist {
    cubist(String n) { super(n); }
    public int getNumber() { return number; }
}

public class Artist {
    public static void main(String[] args) {
        ModernArtist[] artists;

        artists = new ModernArtist[3];
        for (int i = 0; i < 3; i++) {
            artists[i] = new cubist("Picasso");
        }
        for (int i = 0; i < 3; i++)
            System.out.println("modern artist: " + artists[i].getName());
    }
}