Answered: IN JAVA. Any help is appreciated!…

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.

Any help is appreciated! Thank you!

PART 1 : Automobiles

Create a data class named Automobile that implements the Comparable interface. Give the class data fields for make, model, year, and price. Then add a constructor, all getters, a toString method that shows all attribute values, and implement Comparable by using the year as the criterion for comparing instances.

Write a program named TestAutos that creates an ArrayList of five or six Automobiles. Use a for loop to display the elements in the ArrayList. Sort the Arraylist of autos by year with Collections.sort(). Finally, use a foreach loop to display the ArrayList sorted by year.

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PART 2: Pets

Examine carefully the UML class diagram below:

NOTE: Class Reptile was missing a toString() method. It has now been added.

class Pet has an attribute of type java.util.Date.
no specific dates are required for this attribute.
compareTo(Dog) compares Dogs by weight.

Create executable class TestPet as follows:

create at least one Reptile pet and display it
create an array of at least four Dog pets
sort the array of Dogs by weight
use a foreach loop to fully display all data for all dogs sorted by weight (see sample output)

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