Question

C++ Exercice

Topic Cover: Class and main implementation 1. Created the class circle.h file 2. Create the Circle. cpp 3. Create the main function and use the class Circle in your program (CircleClass) Create a class called circle in other to performing the calculation of the area, sectional area and circumference of any circle. Write a program to test your class. Circle Use double variables to represent the private data of the class. Provide a constructor that enables an object of this class to be initialized when it declared. The constructor should contain default values in case no initializers are provided. Provide public member functions that perform the following tasks: a. Create setter's member functions to obtain and validated the radius of the circle between two values 0 to 25.5 cm, and also validated the angel phi of the section between (0 to 360 or 0 to 6.28). Use the construct default value for r = 0 and phi = 360 = 2 pi or 6.28, if no angel is specify by the user. The construct must be like this circle (r, ang), and the setters member functions must be like this set_circle. radio(r) and set_circle.angle(ang). b. Create a member function to obtain the section area of the circle if a anle phi is enter by the user. set_circle.area_section(). c. Create a member function that gets the area of the get_circle.area() d. Create a member function that gets the circumference of the get_circle.cricun() e. Create a member function to obtain the section area of the circle if a anle phi is enter by the user. get_circle.area_section(). To test your program use the following user input data r = 2, phi = pi/4 or phi = 0.78539

Answer 1

Here is the code for Circle.h:

class Circle
{
    double radius;
    double sectionAngle;
    public:
        Circle(double r = 0, double sA = 6.28);
        void set_circle_radius(double r);
        void set_circle_angle(double ang);
        double get_circle_area();
        double get_circle_area_section();
};

Code for Circle.cpp is:

#include "Circle.h"
Circle::Circle(double r, double sA)
    {
        radius = r;
        sectionAngle = sA;
    }
void Circle::set_circle_radius(double r)
    {
        radius = r;
   }
void Circle::set_circle_angle(double ang)
    {
        sectionAngle = ang;
    }
double Circle::get_circle_area()
    {
        return 3.14 * radius * radius;
    }
double Circle::get_circle_area_section()
    {
        return get_circle_area() * sectionAngle / 360;
    }

And the Demo.cpp code is:

#include <iostream>
#include "Circle.cpp"
using namespace std;
int main()
{
    Circle c (2, 0.78539);
    cout << "The area of the circle is: " << c.get_circle_area() << endl;
    cout << "The sectional area is: " << c.get_circle_area_section() << endl;
}

Finally the output screenshot is:

Terminal Shell Edit View Window Help < >し 令见 4)) 98% Eか Wed 10 May 08:31 ANANDA KUMAR THUMMAPUDI a。E Currently Open Docum... Circle.cpp #include «iostream CircleSectionalArea--bashー108x49 | #include "Circle.cpp" using n㏂espace std; h Circle.h 2 /HomeworkLibCPP/C alArea--bash CircleDemo.cppe GeneralFile.txt Macintosh:CircleSectionalArea AnandaKumarThunmapudis g+ CircleDemo.cpp Macintosh:CirclesectionalArea AnandaKumarThunmapudis a.out The area of the circle is: 12.56 The sectional area is: 0.0274014 Macintosh:CirclesectionalArea AnandaKumarThunmapudis int main) Circle c (2, 8.78539); cout << "The area of the circle is: " << C.get cout <<"The sectional area is: "<c.get ci 6