Complete a properly encapsulated class named Circle, which inherits from Shape and has the following: - - - A double instance variable named radius. A default, no-arg constructor which sets radius to 1. An overloaded constructor which takes one double parameter and sets the instance variable radius to the value passed in. Another overloaded constructor which takes three parameters, a double for radius, a boolean for isFilled and a String for color, and sets the instance variables accordingly, Hint:(Invoke the matching constructor from the superclass)!! A method named getArea() which calculates and returns the area of the circle. An overridden toString() method. The returned String should contain: the value of radius, the area of the circle, then the result of calling the toString() method from the superclass, the return String should be formatted as follows: Radius: 2.67 Area: 22.396099868176275 Filled: true Color: Green

Complete a properly encapsulated class named Circle, which inherits from Shape and has the following: - - - A double instance variable named radius. A default, no-arg constructor which sets radius to 1. An overloaded constructor which takes one double parameter and sets the instance variable radius to the value passed in. Another overloaded constructor which takes three parameters, a double for radius, a boolean for isFilled and a String for color, and sets the instance variables accordingly, Hint:(Invoke the matching constructor from the superclass)!! A method named getArea() which calculates and returns the area of the circle. An overridden toString() method. The returned String should contain: the value of radius, the area of the circle, then the result of calling the toString() method from the superclass, the return String should be formatted as follows: Radius: 2.67 Area: 22.396099868176275 Filled: true Color: Green

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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Concept explainers

OOPs

In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.

Constructor

The easiest way to think of a constructor in object-oriented programming (OOP) languages is:

Question

Complete a properly encapsulated class named Circle, which inherits from Shape and
has the following:
A double instance variable named radius.
A default, no-arg constructor which sets radius to 1.
An overloaded constructor which takes one double parameter and sets the
instance variable radius to the value passed in.
Another overloaded constructor which takes three parameters, a double
for radius, a boolean for isFilled and a String for color, and sets
the instance variables accordingly, Hint:(Invoke the matching constructor
from the superclass)!!
A method named getArea() which calculates and returns the area of the
circle.
An overridden toString() method. The returned String should contain:
the value of radius, the area of the circle, then the result of calling the
toString() method from the superclass, the return String should be
formatted as follows:
Radius: 2.67
Area: 22.396099868176275
Filled: true
Color: Green

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