OOP HomeWork

oop_hw5/hw2/animal.cpp

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+#include "animal.h"
+#include <iostream>
+#include <cstring>
+
+Animal::Animal() {
+	name = "#UNDEFINED";
+	weight = -1;
+}
+Animal::Animal(std::string n, int w) {
+	name = n;
+	weight = w;
+}
+std::string Animal::show_name()
+{
+	return name;
+}
+int Animal::show_weight()
+{
+	return weight;
+}
+void Animal::who() {
+	std::cout << "This is an Animal" << std::endl;
+	std::cout << "Name : " << name << std::endl
+		<< "Weight : " << weight << std::endl;
+}
+Lion::Lion() {
+	this->change_name("#UNDEFINED_LION_NAME");
+	this->change_weight(-1);
+}
+Lion::Lion(std::string n,int w) {
+	this->change_name(n);
+	this->change_weight(w);
+}
+void Lion::who() {
+	std::cout << "This is a Lion" << std::endl;
+	std::cout << "Name : " << this->show_name() << std::endl
+		<< "Weight : " << this->show_weight() << std::endl;
+}
+Aardvark::Aardvark() {
+	this->change_name("#UNDEFINED_LION_NAME");
+	this->change_weight(-1);
+}
+Aardvark::Aardvark(std::string n, int w) {
+	this->change_name(n);
+	this->change_weight(w);
+}
+void Aardvark::who() {
+	std::cout << "This is a Aardvark" << std::endl;
+	std::cout << "Name : " << this->show_name() << std::endl
+		<< "Weight : " << this->show_weight() << std::endl;
+}
+void Animal::change_name(std::string cn) {
+	name = cn;
+}
+void Animal::change_weight(int cw) {
+	weight = cw;
+}

oop_hw5/hw2/animal.h

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+
+#pragma once
+#include <iostream>
+#include <cstring>
+
+class Animal {
+private:
+	std::string name;
+	int weight;
+public:
+	Animal();
+	Animal(std::string n, int w);
+	std::string show_name();
+	int show_weight();
+	void change_name(std::string cn);
+	void change_weight(int cw);
+	virtual void who();
+protected:
+	
+};
+
+class Lion : public Animal {
+public:
+	Lion();
+	Lion(std::string n, int w);
+	void who();
+};
+
+class Aardvark : public Animal {
+public:
+	Aardvark();
+	Aardvark(std::string n, int w);
+	void who();
+};

oop_hw5/hw2/main.cpp

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+#include <iostream>
+#include <cstring>
+#include "animal.h"
+
+using std::cout;
+using std::cin;
+using std::endl;
+
+int main() {
+	Animal a("Animal!", 100);
+	Lion b("Lion W", 200);
+	Aardvark c("Aardvark", 300);
+	a.who();
+	b.who();
+	c.who();
+	return 0;
+}