package animal;

abstract class Animal implements Node{
    public void speak(String s){
        System.out.println(s);
    }
}

class Snake extends Animal{
    public void speak(String s){
        System.out.println(s+"...sssss");
    }

    @Override
    public void accept(Visitor visitor) {
        visitor.visit(this);

    }
}

class Monkey extends Animal{
    public void speak(String s){
        System.out.println(s + "  me like banana!");
    }

    @Override
    public void accept(Visitor visitor) {
        visitor.visit(this);

    }
}

interface Visitor{
    public void visit(Monkey monkey);
    public void visit(Snake snake);
}

interface Node {
    public void accept(Visitor visitor);
}

class FightMonkey implements Visitor {

    @Override
    public void visit(Monkey monkey) {
        System.out.println("Even fight");

    }

    @Override
    public void visit(Snake snake) {
        System.out.println("Snake wins");

    }

}

public class AnimalTest {

    public static void fight(Animal a, Animal b){
        System.out.println("boring");
    }

    public static void fight(Monkey m, Snake s) {
        System.out.println("Monkey run");
    }
    public static void fight(Snake s, Monkey m) {
        System.out.println("Snake kills");
    }

    public static void main(String[] args) {
        Animal snake = new Snake();
        Animal monkey = new Monkey();
        AnimalTest.fight(snake, monkey);

        Visitor monkeyFighter = new FightMonkey();

        snake.accept(monkeyFighter);

    }

}