Something

#include <iostream>
#include <string>

using namespace std;

class Book
{
	string m_title;
	string m_author;
	string m_isbn;

public:

	Book(string title,
	     string author,
	     string isbn)
	{
		m_title = title;
		m_author = author;
		m_isbn = isbn;
	}

	string getTitle()
	{
           return m_title;
    }

    string getAuthor()
    {
           return m_author;
    }

    string getISBN()
    {
           return m_isbn;
    }

    void setTitle(string title)
    {
         m_title = title;
    }

    void setAuthor(string author)
    {
         m_author = author;
    }

    void setISBN(string isbn)
    {
         m_isbn = isbn;
    }
};

class Student
{
	// array der geliehenen Buecher
	Book* m_book[8];

public:
	Student()
	{
		for(int i=0; i<(sizeof(m_book)/sizeof(m_book[0])); i++)
		{
                m_book[i] = NULL;
        }
	}

	~Student()
	{
		for(int i=0; i<(sizeof(m_book)/sizeof(m_book[0])); i++)
		{
                if(m_book[i] != NULL)
                {
                             delete m_book[i];
                             m_book[i] = NULL;
                }
        }
	}

	void addBook(Book book)
	{
        int i=0;
        while(m_book[i] != NULL)
        {
              i++;
        }
        m_book[i] = new Book(book);
	}

	void removeBook(Book book)
	{
        int i=0;
        while(book.getISBN() != (m_book[i]).getISBN())
        {
              i++;
        }
        delete m_book[i];
        m_book[i] = NULL;
	}

	void printBooks()
	{
        int i;
		for(i=0; i<(sizeof(m_book)/sizeof(m_book[0])); i++)
		{
                if(m_book[i] != NULL)
                {
                      cout << "[Buch " << i << "] " << "Titel: " << (*m_book[i]).getTitle() << endl;
                      cout << "Author: " << (*m_book[i]).getAuthor() << ", "
                           << "ISBN: " <<(m_book[i]).getISBN() << endl;
                }
        }
	}
};

/** This is the entry point of the program. */
int main(int argc, char* argv[])
{
	cout << "----------------\n";;

	Book book_1("Introduction to Algorithms",
	            "Th. Cormen, Ch. Leiserson, R. Rivest",
	            "0262531968");

	Book book_2("The C++ Programming Language",
	            "Bjarne Stroustrup",
	            "0201700735");

	Book book_3("Grundkurs Informatik",
	            "H. Ernst",
	            "3528257172");

	Student student;
	student.addBook(book_1);
	student.addBook(book_2);
	student.addBook(book_3);
	student.printBooks();

	cout << "----------------\n";;

	student.removeBook(book_2);
	student.printBooks();

	cout << "----------------\n";;
    //wieder weg machen
    cin.get();
	return 0;
}