public class Book {

    private String title;
    private int id;
    private static int count = 0;
    private int time;
   

    public Book(String title, int id) {
        this.time = time;
        this.title = title;
        this.id = id;
        count += 1;
    }

    public String toString() {
        return title + ", " + id;
    }

    public static int getBookCount() {
        return count;         
    }

    public static long addBook(String title, int id) {
        long start = System.nanoTime(); // Get the current system time in nanoseconds
        Book[0] = new Book(title, id); 
        while (start <  10000000000){

        }
        else {
            
        }
        return (end - start); // Return the difference between the start and end times
    }

    public static void main(String[] args) {
        public static Book[] books = new Book [2];

        for (Book book : books) {  // Use Foreach syntax to iterate over array
            System.out.println(book);   // this is same as book.toString()
       }
       
       System.out.println("Libary Book Count: " + Book.getBookCount());
    }

}
Book.main(null);

public class Novel extends Book{
    private String author;
    private int year;

    public static String getAuthor(){
        return author;
    }
    
    public static int getYear(){
        return year;
    }

    public static void setAuthor(String author){
        this.author = author;
    }

    public static void setYear(int year){
        this.year = year;
    }

}

public class Textbook extends Book{
    private String Company;
    private String subject;
    
    public static String getCompany(){
        return Company;
    }
    
    public static String getSubject(){
        return subject;
    }

    public static void setCompany(String Company){
        this.Company = Company;
    }

    public static void setSubject(String Subject){
        this.subject = subject;
    }
}