in java create three classes:An Animal class: it should have at least 3 properties and 3 methods. One of the methods should be makeSound() which will return "Animals make sound!" A Horse class: This class will be a child class of the Animal class. Add 2 new properties that are relevant to the Horse class. Override the makeSound() method to return "Neigh!"A Dog class: This class will be a child class of the Animal class. Add 2 new properties that are relevant to a Cat. Override the makeSound() method to return "Woof! Woof!"Now, in both the Horse class and Dog class:Write a main methodCreate an object of that class typeSet some of the properties of the objectCall the makeSound() method using the object and print the sound. This is a simple test to check your program works correctly. A horse should say "Neigh" and a dog should say "Woof! Woof!"

Please find the answer below ;Animal.java //Animal class definition public class Animal { //Class fields private String name; private int age; private int size; //Constructor public Animal(String name, int age, int size) { this.name = name; this.age = age; this.size = size; } //getters public String getName() { return name; } public int getAge() { return age; } public int getSize() { return size; } public void eat() { System.out.println("Animal is eating."); } public void sleep() { System.out.println("Animal is sleeping."); } public String makeSound() { return "Animals make sound!"; }} Horse.java //Horse class definition public class Horse extends Animal { //class fields private String color; private int numberOfLegs; //Constructor public Horse(String name, int age, int size, String color, int numberOfLegs) { super(name, age, size); this.color = color; this.numberOfLegs = numberOfLegs; } //getters public String getColor() { return color; } public int getNumberOfLegs() { return numberOfLegs; } @Override public String makeSound() { return "Neigh!"; } //main program public static void main(String[] args) { Horse horse = new Horse("Betsy", 5, 10, "Brown", 4); System.out.println(horse.makeSound()); }} Dog.java //class definitionpublic class Dog extends Animal { //class fields private String breed; private String furColor; //constructor public Dog(String name, int age, int size, String breed, String furColor) { super(name, age, size); this.breed = breed; this.furColor = furColor; } //getters public String getBreed() { return breed; } public String getFurColor() { return furColor; } @Override public String makeSound() { return "Woof! Woof!"; } //main program public static void main(String[] args) { Dog dog = new Dog("Fido", 3, 8, "Labrador", "Black"); System.out.println(dog.makeSound()); }} Output :

Answered: java create three classes: An Animal…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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in java create three classes:

An Animal class: it should have at least 3 properties and 3 methods. One of the methods should be makeSound() which will return "Animals make sound!"
A Horse class: This class will be a child class of the Animal class. Add 2 new properties that are relevant to the Horse class. Override the makeSound() method to return "Neigh!"
A Dog class: This class will be a child class of the Animal class. Add 2 new properties that are relevant to a Cat. Override the makeSound() method to return "Woof! Woof!"

Now, in both the Horse class and Dog class:

Write a main method
Create an object of that class type
Set some of the properties of the object
Call the makeSound() method using the object and print the sound. This is a simple test to check your program works correctly. A horse should say "Neigh" and a dog should say "Woof! Woof!"

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