What is the difference between abstract class and interface?Assume you have three interfaces I1, I2 & I3. The definition of these three interfaces is given below:-I1 : Contains method called method_I1();I2 : Contains method called method_I2(); and inherits I1.I3 : Contains method called method_I3();Now, design 5 classes that implement the following scenarios:-Class A: Contains a method called method_A() that prints “Inside A”.Class B: Inherits class A and implements Interface I2Class C: Implements Interface I1 and I3Class D: Is type abstract and Implements Interface I2Class E: Inherits class D

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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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What is the difference between abstract class and interface?
Assume you have three interfaces I1, I2 & I3. The definition of these three interfaces is given below:-
I1 : Contains method called method_I1();
I2 : Contains method called method_I2(); and inherits I1.

I3 : Contains method called method_I3();

Now, design 5 classes that implement the following scenarios:-

Class A: Contains a method called method_A() that prints “Inside A”.
Class B: Inherits class A and implements Interface I2

Class C: Implements Interface I1 and I3

Class D: Is type abstract and Implements Interface I2

Class E: Inherits class D

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