java task

public class Lab

{
public static void main (String[] args){
Lab ll = new Lab();
int page = ll.book();
ll.books(page * 300);

    }

   public void books(int pages){
        System.out.println("in page ="+ pages);
   }
   public int book (){
    System.out.println("how many books");
        return 3;

}
}