Pets classes

import java.util.ArrayList;
import java.util.Scanner;

public class main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        ArrayList<Animals> zoo = new ArrayList<Animals>();
        zoo.add(new Cat("Abby", 12, "may"));
        zoo.add(new Dog("Max", 10, "bayyy"));
        zoo.add(new Cat("Jessie", 2, "mayyy"));
        zoo.add(new Bear("Boo", 8, "brrr"));
        zoo.get(1).information();
        zoo.get(0).information();
        System.out.println(zoo.get(2).sound);
        System.out.println(zoo.get(3).age);

    }
}

public class Animals {

    String name;
    int age;
    String sound;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getSound() {
        return sound;
    }

    public void setSound(String sound) {
        this.sound = sound;
    }

    protected void sound() {
        System.out.println(sound);
    }

    protected void information() {
        System.out.printf("%s is %d years old, %s%n", this.name, this.age, this.sound);
    }

}

public class Dog extends Animals {
    public Dog(String name, int age, String sound) {
        super.setName(name);
        super.setAge(age);
        super.setSound(sound);
    }
}

public class Cat extends Animals {

    public Cat(String name, int age, String sound) {
        super.setName(name);
        super.setAge(age);
        super.setSound(sound);
    }
}

public class Bear extends Animals {
    public Bear(String name, int age, String sound) {
        super.setName(name);
        super.setAge(age);
        super.setSound(sound);
    }
}