//eg17_TextBook class, to show "aggregation"
//instance of "eg17_TextBook" class is to be a field in "eg17_Course" class

public class eg17_TextBook
{
	private String title;
	private String author;
	private String publisher;
	
	//constructor
	public eg17_TextBook(String textTitle, String auth, String pub)
	{
		title = textTitle;
		author = auth;
		publisher = pub;
	}
	
	public eg17_TextBook(eg17_TextBook object2)
	{
		title = object2.title;
		author = object2.author;
		publisher = object2.publisher;
	}
	
	public String toString()
	{
		String str = "Title: " + title + "\nAuthor: " + author + "\nPublisher: " + publisher;
		return str;
	}
}