public class Book {
    String title;
    int pages;

    public Book(String title, int pages) {
	this.title = title;
	this.pages = pages;
    }

    public void setTitle(String title) {
	this.title = title;
    }

    public String getTitle() {
	return title;
    }

    public void setPages(int pages) {
	this.pages = pages;
    }

    public int getPages() {
	return pages;
    }

    public static void main (String[] args) {
	Book javaProgLang = new Book("The Java Programming Language", 333);
	System.out.println(javaProgLang);
	Book mobyDick = new Book("Moby Dick", -2048);
	System.out.println(mobyDick);
	Book badBook = new Book(null, 256);
	System.out.println(badBook);
    }
}