Question 7(a) Suppose the class Spaghetti implements the Edible interface and the base class ofSpaghetti is Food class. You have given the following variables declaration:Food food;new Spaghetti ();Spaghetti spaEdible e = null;%3DIdentify the following statements as valid or invalid.i)e spa;spa = food;= new Food():ii)spafood (Spaghetti) e:e = new Spaghetti():CS Scanned with CamScanner (b) Given the following class:class Pet (String name;Pet (String n) (name= n;//getter & setter methodCreate a class called Owner with the following details:An owner name as a string type.An object of Pet type.A constructor to accept the owner's name and pet's name.A getter method for the pet object.Override the toString method to print out both names.Override the equals method to check the equality of the owner's nameand pet's name. Pass a parameter as Owner type in this method.(c)Based on the Owner and Pet classes. Write a fragment of code to instantiate an Ownerobject with any names. Then, change the pet name to 'Blacky'.CS Scanned with CamScanner

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Answered: Identify the following statements as…

Identify the following statements as valid or invalid. i) e = spa; ii) spa = food; 111) spa new Food(): iv) %3D %3D food (Spaghetti) e: v) %3D e = new Spaghetti():

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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Question

(b) Given the following class:
class Pet (
String name;
Pet (String n) (
name
= n;
//getter & setter method
Create a class called Owner with the following details:
An owner name as a string type.
An object of Pet type.
A constructor to accept the owner's name and pet's name.
A getter method for the pet object.
Override the toString method to print out both names.
Override the equals method to check the equality of the owner's name
and pet's name. Pass a parameter as Owner type in this method.
(c)
Based on the Owner and Pet classes. Write a fragment of code to instantiate an Owner
object with any names. Then, change the pet name to 'Blacky'.
CS Scanned with CamScanner

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