Tutoriais - Programação Orientada a ObjetosDesenvolva uma classe chamada Octagon para representar um octógono, ou seja, um polígono regular com oito lados de mesmo comprimento. A classe possui um único atributo denominado side, do tipo double, que representa o lado do octógono e cujo valor deve ser maior ou igual a zero e menor ou igual a vinte. O lado do octógono pode ser obtido e alterado pelo usuário por meio dos métodos getSide() e setSide(), respectivamente. A classe também apresenta os métodos area() e perimeter(), que retornam a área e o perímetro do octógono, respectivamente. A área de um octógono de lado l é obtida pela fórmula 2 * (√2 + 1) * l2. O perímetro de um octógono de lado l é obtido pela fórmula 8 * l.
/*************************************************************************
* Copyright (C) 2009/2024 - 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.tutorial05.exercicio05;
/**
* Classe responsavel pela representacao de um poligono regular
*/
public abstract class RegularPolygon
{
/**
* Lado do poligono regular
*/
private double side;
/**
* Construtor padrao
*
* @throws IllegalArgumentException valor do lado do poligono regular invalido
*/
public RegularPolygon() throws IllegalArgumentException
{
this(0.0);
}
/**
* Construtor para inicializar o lado do poligono regular
*
* @param side lado do poligono regular
* @throws IllegalArgumentException valor do lado do poligono regular invalido
*/
public RegularPolygon(double side) throws IllegalArgumentException
{
setSide(side);
}
/**
* Retornar o lado do poligono regular
*
* @return lado do poligono regular
*/
public double getSide()
{
return side;
}
/**
* Configurar o lado do poligono regular
*
* @param side lado do poligono regular
* @throws IllegalArgumentException valor do lado do poligono regular invalido
*/
public void setSide(double side) throws IllegalArgumentException
{
if((side >= 0.0) && (side <= 20.0))
{
this.side = side;
}
else
{
throw new IllegalArgumentException("O lado do polígono regular deve estar contido entre 0.0 e 20.0: '" + side + "'");
}
}
/**
* Retornar a area do poligono regular
*
* @return area do poligono regular
*/
public abstract double area();
/**
* Retornar o perimetro do poligono regular
*
* @return perimetro do poligono regular
*/
public abstract double perimeter();
}/*************************************************************************
* Copyright (C) 2009/2024 - 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.tutorial05.exercicio05;
/**
* Classe responsavel pela representacao de um octogono
*/
public class Octagon extends RegularPolygon
{
/**
* Construtor padrao
*
* @throws IllegalArgumentException valor do lado do octogono invalido
*/
public Octagon() throws IllegalArgumentException
{
super();
}
/**
* Construtor para inicializar o lado do octogono
*
* @param side lado do octogono
* @throws IllegalArgumentException valor do lado do octogono invalido
*/
public Octagon(double side) throws IllegalArgumentException
{
super(side);
}
/**
* Retornar a area do octogono
*
* @return area do octogono
*/
public double area()
{
return 2.0 * (Math.sqrt(2.0) + 1.0) * Math.pow(getSide(), 2.0);
}
/**
* Retornar o perimetro do octogono
*
* @return perimetro do octogono
*/
public double perimeter()
{
return 8.0 * getSide();
}
}/*************************************************************************
* Copyright (C) 2009/2024 - 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.tutorial05.exercicio05;
/**
* Classe responsavel pela execucao da classe Octagon
*/
public class Application
{
/**
* Construtor padrao
*/
private Application()
{
}
/**
* Metodo principal da linguagem de programacao Java
*
* @param args argumentos da linha de comando (nao utilizado)
*/
public static void main(String[] args)
{
try
{
Octagon octagon = new Octagon(5.0);
System.out.print("O lado do octógono é: ");
System.out.println(octagon.getSide());
System.out.print("A área do octógono é: ");
System.out.println(octagon.area());
System.out.print("O perímetro do octógono é: ");
System.out.println(octagon.perimeter());
}
catch(IllegalArgumentException exception)
{
exception.printStackTrace();
}
catch(Exception exception)
{
exception.printStackTrace();
}
}
}
/*************************************************************************
* Copyright (C) 2009/2024 - 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 EXCEPTION_HPP
#define EXCEPTION_HPP
#include <string>
/**
* Excecao padrao
*/
class Exception
{
public:
/**
* Construtor padrao
*/
Exception();
/**
* Construtor para inicializar a mensagem de erro
*
* @param message mensagem de erro
*/
Exception(std::string message);
/**
* Retornar a mensagem de erro
*
* @return mensagem de erro
*/
std::string getMessage();
private:
/**
* Mensagem de erro
*/
std::string message;
};
#endif/*************************************************************************
* Copyright (C) 2009/2024 - 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 "Exception.hpp"
/**
* Construtor padrao
*/
Exception::Exception()
{
message = '\0';
}
/**
* Construtor para inicializar a mensagem de erro
*
* @param message mensagem de erro
*/
Exception::Exception(std::string message)
{
Exception::message = message;
}
/**
* Retornar a mensagem de erro
*
* @return mensagem de erro
*/
std::string Exception::getMessage()
{
return message;
}/*************************************************************************
* Copyright (C) 2009/2024 - 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 ILLEGALARGUMENTEXCEPTION_HPP
#define ILLEGALARGUMENTEXCEPTION_HPP
#include "Exception.hpp"
/**
* Excecao lancada caso o metodo receba um parametro invalido
*/
class IllegalArgumentException : public Exception
{
public:
/**
* Construtor padrao
*/
IllegalArgumentException();
/**
* Construtor para inicializar a mensagem de erro
*
* @param message mensagem de erro
*/
IllegalArgumentException(std::string message);
};
#endif/*************************************************************************
* Copyright (C) 2009/2024 - 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 "IllegalArgumentException.hpp"
/**
* Construtor padrao
*/
IllegalArgumentException::IllegalArgumentException()
:Exception()
{
}
/**
* Construtor para inicializar a mensagem de erro
*
* @param message mensagem de erro
*/
IllegalArgumentException::IllegalArgumentException(std::string message)
:Exception(message)
{
}/*************************************************************************
* Copyright (C) 2009/2024 - 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 REGULARPOLYGON_HPP
#define REGULARPOLYGON_HPP
#include "IllegalArgumentException.hpp"
/**
* Classe responsavel pela representacao de um poligono regular
*/
class RegularPolygon
{
public:
/**
* Construtor padrao
*
* @throws IllegalArgumentException valor do lado do poligono regular
* invalido
*/
RegularPolygon() throw (IllegalArgumentException);
/**
* Construtor para inicializar o lado do poligono regular
*
* @param side lado do poligono regular
* @throws IllegalArgumentException valor do lado do poligono regular
* invalido
*/
RegularPolygon(double side) throw (IllegalArgumentException);
/**
* Destructor
*/
~RegularPolygon();
/**
* Retornar o lado do poligono regular
*
* @return lado do poligono regular
*/
double getSide();
/**
* Configurar o lado do poligono regular
*
* @param side lado do poligono regular
* @throws IllegalArgumentException valor do lado do poligono regular
* invalido
*/
void setSide(double side) throw (IllegalArgumentException);
/**
* Retornar a area do poligono regular
*
* @return area do poligono regular
*/
virtual double area() = 0;
/**
* Retornar o perimetro do poligono regular
*
* @return perimetro do poligono regular
*/
virtual double perimeter() = 0;
private:
/**
* Lado do poligono regular
*/
double side;
};
#endif/*************************************************************************
* Copyright (C) 2009/2024 - 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 <sstream>
#include "RegularPolygon.hpp"
/**
* Construtor padrao
*
* @throws IllegalArgumentException valor do lado do poligono regular
* invalido
*/
RegularPolygon::RegularPolygon() throw (IllegalArgumentException)
{
setSide(0.0);
}
/**
* Construtor para inicializar o lado do poligono regular
*
* @param side lado do poligono regular
* @throws IllegalArgumentException valor do lado do poligono regular
* invalido
*/
RegularPolygon::RegularPolygon(double side) throw (IllegalArgumentException)
{
setSide(side);
}
/**
* Destructor
*/
RegularPolygon::~RegularPolygon()
{
}
/**
* Retornar o lado do poligono regular
*
* @return lado do poligono regular
*/
double RegularPolygon::getSide()
{
return side;
}
/**
* Configurar o lado do poligono regular
*
* @param side lado do poligono regular
* @throws IllegalArgumentException valor do lado do poligono regular
* invalido
*/
void RegularPolygon::setSide(double side) throw (IllegalArgumentException)
{
if((side >= 0.0) && (side <= 20.0))
{
RegularPolygon::side = side;
}
else
{
std::stringstream buffer;
buffer << "O lado do polígono regular deve estar contido "
<< "entre 0.0 e 20.0: '" << side << "'";
throw IllegalArgumentException(buffer.str());
}
}/*************************************************************************
* Copyright (C) 2009/2024 - 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 OCTAGON_HPP
#define OCTAGON_HPP
#include "RegularPolygon.hpp"
/**
* Classe responsavel pela representacao de um octogono
*/
class Octagon : public RegularPolygon
{
public:
/**
* Construtor padrao
*
* @throws IllegalArgumentException valor do lado do octogono invalido
*/
Octagon() throw (IllegalArgumentException);
/**
* Construtor para inicializar o lado do octogono
*
* @param side lado do octogono
* @throws IllegalArgumentException valor do lado do octogono invalido
*/
Octagon(double side) throw (IllegalArgumentException);
/**
* Destructor
*/
~Octagon();
/**
* Retornar a area do octogono
*
* @return area do octogono
*/
double area();
/**
* Retornar o perimetro do octogono
*
* @return perimetro do octogono
*/
double perimeter();
};
#endif/*************************************************************************
* Copyright (C) 2009/2024 - 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 <cmath>
#include "Octagon.hpp"
/**
* Construtor padrao
*
* @throws IllegalArgumentException valor do lado do octogono invalido
*/
Octagon::Octagon() throw (IllegalArgumentException)
: RegularPolygon()
{
}
/**
* Construtor para inicializar o lado do octogono
*
* @param side lado do octogono
* @throws IllegalArgumentException valor do lado do octogono invalido
*/
Octagon::Octagon(double side) throw (IllegalArgumentException)
: RegularPolygon(side)
{
}
/**
* Destructor
*/
Octagon::~Octagon()
{
}
/**
* Retornar a area do octogono
*
* @return area do octogono
*/
double Octagon::area()
{
return 2.0 * (sqrt(2.0) + 1.0) * pow(getSide(), 2.0);
}
/**
* Retornar o perimetro do octogono
*
* @return perimetro do octogono
*/
double Octagon::perimeter()
{
return 8.0 * getSide();
}/*************************************************************************
* Copyright (C) 2009/2024 - 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 "Octagon.hpp"
using namespace std;
/**
* 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)
{
try
{
Octagon* octagon = new Octagon(5.0);
cout << "O lado do octógono é: "
<< octagon->getSide() << endl;
cout << "A área do octógono é: "
<< octagon->area() << endl;
cout << "O perímetro do octógono é: "
<< octagon->perimeter() << endl;
delete octagon;
}
catch(IllegalArgumentException exception)
{
cerr << exception.getMessage() << endl;
}
catch(...)
{
cerr << "Exceção desconhecida" << endl;
}
return 0;
}##########################################################################
# Copyright (C) 2009/2024 - 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 Exception.o -c Exception.cpp
g++ -o IllegalArgumentException.o -c IllegalArgumentException.cpp
g++ -o RegularPolygon.o -c RegularPolygon.cpp
g++ -o Octagon.o -c Octagon.cpp
g++ -o Application.o -c Application.cpp
g++ -o application Exception.o IllegalArgumentException.o RegularPolygon.o Octagon.o Application.oYbadoo - Soluções em Software Livre • Copyright 2009/2024 • 