Q1.Suppose that Fruit, Apple, Orange, GoldenDelicious, and McIntosh are defined inthe following inheritance hierarchy:FruitАppleOrangemakeAppleCider() void+ makeOrangeJuice() voidGoldenDeliciousMcIntoshAnd assume that the following code is given:Fruit fruit = new GoldenDelicious();Orange orange = new Orange(O;Answer the following questions, and explain your answer.Is fruit instanceof Fruit?Is fruit instanceof Orange?Is fruit instanceof Apple?Is fruit instanceof GoldenDelicious?Is fruit instanceof McIntosh?Is orange instanceof Orange?Is orange instanceof Fruit?h. Is orange instanceof Apple?Can fruit invoke makeAppleCider method?j.a.b.С.d.e.f.g.i.Can orange invoke makeAppleCider method?k.Can fruit invoke makeOrangeJuice method?Can orange invoke makeOrangeJuice method?m. Is the statement Orange p new Apple() legal?Is the statement McIntosh p = new Apple () legal?Is the statement Apple p new McIntosh () legal?I.n.O.

a) Yes, as it is initiated as an instance of class Fruit b) No, as instance of parent class is not…

Suppose that Fruit, Apple, Orange, GoldenDelicious, and McIntosh are de the following inheritance hierarchy: Fruit Apple Orange * makeAppleCider() void + makeOrangeJuice() void GoldenDelicious Mclntosh And assume that the following code is given: Fruit fruit = new GoldenDelicious(); Orange orange = new Orange() ; Answer the following questions, and explain your answer. a. Is fruit instanceof Fruit? Is fruit instanceof Orange? Is fruit instanceof Apple? d. Is fruit instanceof GoldenDelicious? b. C. Is fruit instanceof McIntosh? Is orange instanceof Orange? Is orange instanceof Fruit? h. Is orange instanceof Apple? Can fruit invoke makeAppleCider method? Can orange invoke makeAppleCider method? k. e. f. g. i. j. Can fruit invoke makeOrangeJuice method? Can orange invoke makeOrangeJuice method? m. Is the statement Orange p new Apple () legal? Is the statement McIntosh p new Apple() legal? Is the statement Apple p new McIntosh () legal? I. n. O.

Suppose that Fruit, Apple, Orange, GoldenDelicious, and McIntosh are de the following inheritance hierarchy: Fruit Apple Orange * makeAppleCider() void + makeOrangeJuice() void GoldenDelicious Mclntosh And assume that the following code is given: Fruit fruit = new GoldenDelicious(); Orange orange = new Orange() ; Answer the following questions, and explain your answer. a. Is fruit instanceof Fruit? Is fruit instanceof Orange? Is fruit instanceof Apple? d. Is fruit instanceof GoldenDelicious? b. C. Is fruit instanceof McIntosh? Is orange instanceof Orange? Is orange instanceof Fruit? h. Is orange instanceof Apple? Can fruit invoke makeAppleCider method? Can orange invoke makeAppleCider method? k. e. f. g. i. j. Can fruit invoke makeOrangeJuice method? Can orange invoke makeOrangeJuice method? m. Is the statement Orange p new Apple () legal? Is the statement McIntosh p new Apple() legal? Is the statement Apple p new McIntosh () legal? I. n. O.

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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