Question 4 (students need to interpret code and only write justifications) Solid principle (Liskov) and abstract class/interface Here are three classes that are part of an Australian wildlife simulator: public abstract class Bird{ public void fly(); } public class Cockatoo extends Bird{...} public class Emu extends Bird{..} You realise there is something wrong with this design since Emus cannot fly. 1) What solid principle would be violated if the design is left as is and why? Explain briefly in one or two lines using your own words. 2) Briefly suggest a solution to comply with such a principle (use 2-3 lines maximum).

Question 4 (students need to interpret code and only write justifications) Solid principle (Liskov) and abstract class/interface Here are three classes that are part of an Australian wildlife simulator: public abstract class Bird{ public void fly(); } public class Cockatoo extends Bird{...} public class Emu extends Bird{..} You realise there is something wrong with this design since Emus cannot fly. 1) What solid principle would be violated if the design is left as is and why? Explain briefly in one or two lines using your own words. 2) Briefly suggest a solution to comply with such a principle (use 2-3 lines maximum).

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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