Answer the following questions: a. Is fl instanceof Fruit? b. Is fl instanceof Orange? c. Is fl instanceof Apple? d. Is fl instanceof GoldenDelicious? e. Is fl instanceof McIntosh? f. Is ol instanceof Orange? g. Is orange instanceof Fruit? h. Is ol instanceof Apple? i. Suppose the method makeAppleCider is defined in the Apple class. Can fl invoke this method? Can ol invoke this method? j. Suppose the method makeOrangeJuice is defined in the Orange class. Can ol invoke this method? Can fl invoke this method? k. Is the statement Orange p = new Apple() legal? 1. Is the statement McIntosh p = new Apple() legal? m. Is the statement Apple p = new McIntosh() legal?

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question
Suppose that Fruit, Apple, Orange, GoldenDelicious, and McIntosh are defined
in the following inheritance hierarchy:
Fruit
Apple
Orange
GoldenDelicious
McIntosh
Assume that the following code is given:
Fruit fl = new GoldenDelicious();
Orange ol = new Orange();
Answer the following questions:
a. Is fl instanceof Fruit?
b. Is fl instanceof Orange?
c. Is fl instanceof Apple?
d. Is fl instanceof GoldenDelicious?
e. Is fl instanceof McIntosh?
f. Is ol instanceof Orange?
g. Is orange instanceof Fruit?
h. Is ol instanceof Apple?
i. Suppose the method makeAppleCider is defined in the Apple class. Can
fl invoke this method? Can ol invoke this method?
j. Suppose the method makeOrangeJuice is defined in the Orange class.
Can ol invoke this method? Can fl invoke this method?
k. Is the statement Orange p = new Apple() legal?
1. Is the statement McIntosh p = new Apple() legal?
m. Is the statement Apple p = new McIntosh() legal?
Transcribed Image Text:Suppose that Fruit, Apple, Orange, GoldenDelicious, and McIntosh are defined in the following inheritance hierarchy: Fruit Apple Orange GoldenDelicious McIntosh Assume that the following code is given: Fruit fl = new GoldenDelicious(); Orange ol = new Orange(); Answer the following questions: a. Is fl instanceof Fruit? b. Is fl instanceof Orange? c. Is fl instanceof Apple? d. Is fl instanceof GoldenDelicious? e. Is fl instanceof McIntosh? f. Is ol instanceof Orange? g. Is orange instanceof Fruit? h. Is ol instanceof Apple? i. Suppose the method makeAppleCider is defined in the Apple class. Can fl invoke this method? Can ol invoke this method? j. Suppose the method makeOrangeJuice is defined in the Orange class. Can ol invoke this method? Can fl invoke this method? k. Is the statement Orange p = new Apple() legal? 1. Is the statement McIntosh p = new Apple() legal? m. Is the statement Apple p = new McIntosh() legal?
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