class Animal { public String toString() { return "Animal"; } public String f() { return "Animal f"; } class Mammal extends Animal { public String g() { return "Mammal g"; } public String g() { return "Animal g"; } } class Dog extends Mammal { public String f() { return "Dog f"; } } class Reptile extends Animal { public String toString() { return "Reptile"; } } class Lizard extends Reptile { public String g() { return "Lizard g"; } Select True if the following declarations are legal, False otherwise: Lizard Godzilla = new Reptile(); [Select] Animal Simba= new Mammal(); [Select] Reptile Rango = new Lizard(); [Select] Animal []Ark = + {new Animal(), new Reptile(), new Lizard()}; [Select] Lizard []Hatchlings {new Animal(), new Reptile(), new Lizard()}; [Select]

class Animal { public String toString() { return "Animal"; } public String f() { return "Animal f"; } class Mammal extends Animal { public String g() { return "Mammal g"; } public String g() { return "Animal g"; } } class Dog extends Mammal { public String f() { return "Dog f"; } } class Reptile extends Animal { public String toString() { return "Reptile"; } } class Lizard extends Reptile { public String g() { return "Lizard g"; } Select True if the following declarations are legal, False otherwise: Lizard Godzilla = new Reptile(); [Select] Animal Simba= new Mammal(); [Select] Reptile Rango = new Lizard(); [Select] Animal []Ark = + {new Animal(), new Reptile(), new Lizard()}; [Select] Lizard []Hatchlings {new Animal(), new Reptile(), new Lizard()}; [Select]

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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