Tutoriais - Programação Orientada a ObjetosDesenvolva uma classe chamada Sphere para representar uma esfera. A classe possui um único atributo denominado radius, do tipo double, que representa o raio da esfera. O construtor da classe recebe como parâmetro o raio da esfera, cujo valor deve ser maior ou igual a zero. O raio da esfera pode ser obtido pelo usuário por meio do método getRadius(). A classe também apresenta os métodos area() e volume(), que retornam a área e o volume da esfera, respectivamente. A área de uma esfera de raio r é obtida pela fórmula 4 * π * r2. O volume de uma esfera de raio r é obtido pela fórmula 4 / 3 * π * r3.
/*************************************************************************
* Copyright (C) 2009/2025 - Cristiano Lehrer (cristiano@ybadoo.com.br) *
* Ybadoo - Solucoes em Software Livre (ybadoo.com.br) *
* *
* Permission is granted to copy, distribute and/or modify this document *
* under the terms of the GNU Free Documentation License, Version 1.3 or *
* any later version published by the Free Software Foundation; with no *
* Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A *
* A copy of the license is included in the section entitled "GNU Free *
* Documentation License". *
* *
* Ubuntu 16.10 (GNU/Linux 4.8.0-39-generic) *
* OpenJDK Version "1.8.0_121" *
* OpenJDK 64-Bit Server VM (build 25.121-b13, mixed mode) *
*************************************************************************/
package com.ybadoo.tutoriais.poo.tutorial01.exercicio28;
/**
* Classe responsavel pela representacao de uma esfera
*/
public class Sphere
{
/**
* Raio da esfera
*/
private double radius;
/**
* Construtor para inicializar o raio da esfera
*
* @param radius raio da esfera
*/
public Sphere(double radius)
{
if(radius >= 0.0)
{
this.radius = radius;
}
else
{
this.radius = 0.0;
}
}
/**
* Retornar o raio da esfera
*
* @return raio da esfera
*/
public double getRadius()
{
return radius;
}
/**
* Retornar a area da esfera
*
* @return area da esfera
*/
public double area()
{
return 4.0 * Math.PI * Math.pow(radius, 2.0);
}
/**
* Retornar o volume da esfera
*
* @return volume da esfera
*/
public double volume()
{
return 4.0 / 3.0 * Math.PI * Math.pow(radius, 3.0);
}
}/*************************************************************************
* Copyright (C) 2009/2025 - Cristiano Lehrer (cristiano@ybadoo.com.br) *
* Ybadoo - Solucoes em Software Livre (ybadoo.com.br) *
* *
* Permission is granted to copy, distribute and/or modify this document *
* under the terms of the GNU Free Documentation License, Version 1.3 or *
* any later version published by the Free Software Foundation; with no *
* Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A *
* A copy of the license is included in the section entitled "GNU Free *
* Documentation License". *
* *
* Ubuntu 16.10 (GNU/Linux 4.8.0-39-generic) *
* OpenJDK Version "1.8.0_121" *
* OpenJDK 64-Bit Server VM (build 25.121-b13, mixed mode) *
*************************************************************************/
package com.ybadoo.tutoriais.poo.tutorial01.exercicio28;
import java.util.Scanner;
/**
* Classe responsavel pela execucao da classe Sphere
*/
public class Application
{
/**
* Construtor para inicializar a execucao da classe Sphere
*/
private Application()
{
}
/**
* Metodo principal da linguagem de programacao Java
*
* @param args argumentos da linha de comando (nao utilizado)
*/
public static void main(String[] args)
{
Scanner scanner = new Scanner(System.in);
System.out.print("Forneça o valor do raio da esfera: ");
double radius = scanner.nextDouble();
scanner.close();
Sphere sphere = new Sphere(radius);
System.out.print("O raio da esfera é: ");
System.out.println(sphere.getRadius());
System.out.print("A área da esfera é: ");
System.out.println(sphere.area());
System.out.print("O volume da esfera é: ");
System.out.println(sphere.volume());
}
}
/*************************************************************************
* Copyright (C) 2009/2025 - Cristiano Lehrer (cristiano@ybadoo.com.br) *
* Ybadoo - Solucoes em Software Livre (ybadoo.com.br) *
* *
* Permission is granted to copy, distribute and/or modify this document *
* under the terms of the GNU Free Documentation License, Version 1.3 or *
* any later version published by the Free Software Foundation; with no *
* Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A *
* A copy of the license is included in the section entitled "GNU Free *
* Documentation License". *
* *
* Ubuntu 16.10 (GNU/Linux 4.8.0-39-generic) *
* g++ (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005 *
*************************************************************************/
#ifndef SPHERE_HPP
#define SPHERE_HPP
/**
* Classe responsavel pela representacao de uma esfera
*/
class Sphere
{
public:
/**
* Construtor para inicializar o raio da esfera
*
* @param radius raio da esfera
*/
Sphere(const double radius);
/**
* Retornar o raio da esfera
*
* @return raio da esfera
*/
double getRadius() const;
/**
* Retornar a area da esfera
*
* @return area da esfera
*/
double area() const;
/**
* Retornar o volume da esfera
*
* @return volume da esfera
*/
double volume() const;
private:
/**
* Raio da esfera
*/
double radius;
};
#endif/*************************************************************************
* Copyright (C) 2009/2025 - Cristiano Lehrer (cristiano@ybadoo.com.br) *
* Ybadoo - Solucoes em Software Livre (ybadoo.com.br) *
* *
* Permission is granted to copy, distribute and/or modify this document *
* under the terms of the GNU Free Documentation License, Version 1.3 or *
* any later version published by the Free Software Foundation; with no *
* Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A *
* A copy of the license is included in the section entitled "GNU Free *
* Documentation License". *
* *
* Ubuntu 16.10 (GNU/Linux 4.8.0-39-generic) *
* g++ (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005 *
*************************************************************************/
#define _USE_MATH_DEFINES
#include <cmath>
#include "Sphere.hpp"
/**
* Construtor para inicializar o raio da esfera
*
* @param radius raio da esfera
*/
Sphere::Sphere(const double radius)
{
if(radius >= 0.0)
{
Sphere::radius = radius;
}
else
{
Sphere::radius = 0.0;
}
}
/**
* Retornar o raio da esfera
*
* @return raio da esfera
*/
double Sphere::getRadius() const
{
return radius;
}
/**
* Retornar a area da esfera
*
* @return area da esfera
*/
double Sphere::area() const
{
return 4.0 * M_PI * pow(radius, 2.0);
}
/**
* Retornar o volume da esfera
*
* @return volume da esfera
*/
double Sphere::volume() const
{
return 4.0 / 3.0 * M_PI * pow(radius, 3.0);
}/*************************************************************************
* Copyright (C) 2009/2025 - Cristiano Lehrer (cristiano@ybadoo.com.br) *
* Ybadoo - Solucoes em Software Livre (ybadoo.com.br) *
* *
* Permission is granted to copy, distribute and/or modify this document *
* under the terms of the GNU Free Documentation License, Version 1.3 or *
* any later version published by the Free Software Foundation; with no *
* Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A *
* A copy of the license is included in the section entitled "GNU Free *
* Documentation License". *
* *
* Ubuntu 16.10 (GNU/Linux 4.8.0-39-generic) *
* g++ (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005 *
*************************************************************************/
#include <iostream>
#include "Sphere.hpp"
/**
* Metodo principal da linguagem de programacao C++
*
* @param argc quantidade de argumentos na linha de comando (nao utilizado)
* @param argv argumentos da linha de comando (nao utilizado)
*/
int main(int argc, char** argv)
{
using namespace std;
double radius;
cout << "Forneça o valor do raio da esfera: ";
cin >> radius;
Sphere* sphere = new Sphere(radius);
cout << "O raio da esfera é: " << sphere->getRadius() << endl;
cout << "A área da esfera é: " << sphere->area() << endl;
cout << "O volume da esfera é: " << sphere->volume() << endl;
delete sphere;
return 0;
}##########################################################################
# Copyright (C) 2009/2025 - Cristiano Lehrer (cristiano@ybadoo.com.br) #
# Ybadoo - Solucoes em Software Livre (ybadoo.com.br) #
# #
# Permission is granted to copy, distribute and/or modify this document #
# under the terms of the GNU Free Documentation License, Version 1.3 or #
# any later version published by the Free Software Foundation; with no #
# Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A #
# A copy of the license is included in the section entitled "GNU Free #
# Documentation License". #
# #
# Ubuntu 16.10 (GNU/Linux 4.8.0-39-generic) #
# gcc/g++ (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005 #
##########################################################################
g++ -o Sphere.o -c Sphere.cpp
g++ -o Application.o -c Application.cpp
g++ -o application Sphere.o Application.oYbadoo - Soluções em Software Livre • Copyright 2009/2025 • 