Question

Need some help on this C++ program.

Circle

- color:String - radius:double

+Circle() +Circle(newColor:String, newRadius:double) +setColor(color:String):void +setRadius(radius:double):void +getColor():String +getRadius():double +printCircleInfo():void

Create the class using three files - a .h, a .cpp and a main.cpp

• Create a class called Circle as describe below
• Constructor with no arguments
  • Sets radius to 1 and color to “black”
• Constructor with arguments
  • Sets the color and radius to the values passed in
• Get methods (accessors) return the field that the get refers to
• Set methods (mutators) set the field to the new values passed in to it
• printCircleInfo
  • declares a variable called area
  • computes the area of the circle
  • prints the color and area in the following format

           The red circle has area 78.54

Once you have tested the class. follow the comments in the main below to get the output shown

Main

#include 
#include 
#include "Circle.h"
using namespace std;

int main() {

    string color;
    double radius;

        // Declare and create a circle with the constructor that has no formal parameters
        // Call the object circle1


       // Declare and create a circle with the constructor that has formal parameters
       // The formal parameters to pass in should be "red" and 5
       // Call the object circle2


    cout << "Circle 1:" << endl;
       // Using the object circle1 call the print method in the class


    cout << "Circle 2:" << endl;
       // Using the object circle2 call the print method in the class       


    cout << "\nEnter a color for circle 1: ";
    cin >> color;
       // Use a method in the circle class to change the color of circle1 to be 
       // what the user just entered


    cout << "Enter a radius for circle 1: ";
    cin >> radius; 
       // Use a method in the circle class to change the radius of circle1 to be 
       // what the user just entered


    cout << "Enter a radius for circle 2: ";
    cin >> radius;
       // Use a method in the circle class to change the radius of circle2 to be 
       // what the user just entered


    cout << "\nCircle 1 after changes:" << endl;
       // Using the object circle1 call the print method in the class


    cout << "Circle 2 after changes:" << endl;
       // Using the object circle2 call the print method in the class       

    }

A sample output is given

Circle 1:
The black circle has area 3.14
Circle 2:
The red circle has area 78.54

Enter a color for circle 1: purple
Enter a radius for circle 1: 12.3
Enter a radius for circle 2: 5.28

Circle 1 after changes:
The purple circle has area 475.29
Circle 2 after changes:
The red circle has area 87.58 

Answer 1

Note: Could you plz go through this code and let me know if u need any changes in this.Thank You
_________________

// Circle.h

#ifndef CIRCLE_H
#define CIRCLE_H

class Circle
{
public:
Circle();
Circle(string newColor,double newradius);
// Setter and getter methods
void setRadius(double radius);

double getRadius();

// Function declarations
double getArea();

void setColor(string color);
void printCircleInfo();

string getColor();

private:
double radius;
string color;
};
#endif

______________________

// Circle.cpp

#include <iostream>
#define PI 3.14159
using namespace std;
#include "Circle.h"

Circle::Circle()
{
this->color="black";
this->radius=1;
}
Circle::Circle(string newColor,double newRadius)
{
this->radius=newRadius;
this->color=newColor;
}

//Setters and getters
void Circle::setRadius(double rad)
{
this->radius=rad;
}
double Circle::getRadius()
{
return radius;
}

void Circle::setColor(string color)
{
this->color=color;
}

string Circle::getColor()
{
return color;
}

void Circle::printCircleInfo()
{
double area;
area=3.14159*radius*radius;
cout<<"The "<<color<<" circle has area "<<area<<endl;
}

________________________

// main.cpp

#include <iostream>
using namespace std;
#include "Circle.h"
int main()
{

string color;
double radius;

// Declare and create a circle with the constructor that has no formal parameters
// Call the object circle1
Circle circle1;

// Declare and create a circle with the constructor that has formal parameters
// The formal parameters to pass in should be "red" and 5
// Call the object circle2
Circle circle2("red",5);

cout << "Circle 1:" << endl;
// Using the object circle1 call the print method in the class
circle1.printCircleInfo();

cout << "Circle 2:" << endl;
// Using the object circle2 call the print method in the class   
circle2.printCircleInfo();

cout << "\nEnter a color for circle 1: ";
cin >> color;
// Use a method in the circle class to change the color of circle1 to be
// what the user just entered
circle1.setColor(color);

cout << "Enter a radius for circle 1: ";
cin >> radius;
// Use a method in the circle class to change the radius of circle1 to be
// what the user just entered
circle1.setRadius(radius);

cout << "Enter a radius for circle 2: ";
cin >> radius;
// Use a method in the circle class to change the radius of circle2 to be
// what the user just entered
circle2.setRadius(radius);

cout << "\nCircle 1 after changes:" << endl;
// Using the object circle1 call the print method in the class
circle1.printCircleInfo();

cout << "Circle 2 after changes:" << endl;
// Using the object circle2 call the print method in the class   
circle2.printCircleInfo();

return 0;
}

__________________________

Output:

_______________Could you plz rate me well.Thank You