Test

public class Book{

    public static int id = 1; 
    public String bookTitle; 
    public static int count = 0; 
    public static ArrayList<Book> library = new ArrayList<Book>();

    public Book(String title){
        this.bookTitle= title;
        count++;
        this.startTime= System.nanotime();
        library.add(bookTitle);

    
    
        


        //define toString method and tester method 
    }

    //generate unique id 

    public String toString(){
        return "book title:" + bookTitle; 

    }
    
    public static int getBookCount() {
        return count; 



        //public getter that has bookcount 
    }

    public static int getId() {
        return id++; 

    }

    
    
    public static void main(String[] args){
    
    Book book1 = new Book("suprise test");
    Book book2 = new Book("csa");
    
   

    System.out.println("Id:" + book1.getId() + "" + book1);
    System.out.println("Id:" + book2.getId() + "" + book2);

    System.out.println("book count:" + Book.getBookCount());
    
    

    // tester method that initializes 2 books, outputs title, has count of books in library 
    }
}
Book.main(null);

Id:58book title:suprise test
Id:59book title:csa
book count:71

public class Novel extends Book {
     public String author; 
     public int date;
    
  
    public Novel(String title, String author){
        super(title);
        this.author=author; 

    }

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

    public String getAuthor(){
        return this.author; 
 
 
    }

    public void printNovel(){
        System.out.println(" Id:" + this.id + " Title:" + this.bookTitle + " Author:" + this.author + " Release Date:" + this.date);
        // return(super.toString() + this.author ) 
    }

    public void setReleaseDate(int date){
        this.date=date; 
        return; 
    }

    public int getReleaseDate(){
        return this.date; 
    }

    

    public static void main(String[] args){
        Novel novel1= new Novel("Pride and Prejudice", "your mom");
        novel1.setReleaseDate(1929);
        novel1.printNovel();




    }
}
Novel.main(null);

 Id:60 Title:Pride and Prejudice Author:your mom Release Date:1929

public class Textbook extends Book {
    public String company; 
    public String subject;
 
   public Textbook(String title, String company){
       super(title);
       this.company=company; 

   }

   public void setCompany(String company){
       this.company=company; 
       return; 
   }

   public String getCompany(){
       return this.company; 


   }

   public void printTextbook(){
       System.out.println(" Id:" + this.id + " Title:" + this.bookTitle + " Company:" + this.company + " Subject:" + this.subject); 
   }

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

   public String getSubject(){
       return this.subject; 
   }

   

   public static void main(String[] args){
       Textbook textbook1= new Textbook("American Paegent", "DNHS");
       textbook1.setSubject("history");
       textbook1.printTextbook();




   }
}
Textbook.main(null);

 Id:60 Title:American Paegent Company:DNHS Subject:history