Inheritance

class Person
{
     public:
	Person()
	{
		cout << "Person()" << endl;
	}
	~Person()
	{
		cout << "~Person()" << endl;
	}
	void eat()
	{
		cout << "Person::eat()" << endl;
	}
     protected:
	int _age;
     private:
	int _number;
};

class Student : public Person
{
     public:
	Student()
	{
		cout << "Student()" << endl;
	}
	~Student()
	{
		cout << "~Student()" << endl;
	}
	void eat()
	{
		cout << "Student::eat()" << endl;
	}
     protected:
     private:
};

void test()
{
	Person *p = new Student;
	p->eat();
	delete p;
}

int main()
{
	test();