in main
Book new_novel=new MyBook(title,author,p);
abstract class Book
{
Book(String t,String a){
title=t;
author=a;
}
}
class MyBook extends Book{
MyBook(String t,String a,int p){
t= super.title;
a = super.author;
price = p;
}
}
As user ppeterka suggested in the comments, some Java tutorials would do you wonders. Here's a great place to start: https://docs.oracle.com/javase/tutorial/
However, here's a little help:
You need to define fields in Book
and MyBook
.
For example:
public class Book {
private String title;
private String author;
...
}
As for the constructor, since MyBook
extends Book
, MyBook
's constructor can call Book
's constructor like this:
MyBook(String t,String a,int p){
super(t, a); // Calls Book(title, author)
price = p;
}
As an aside, user coder's statement that
you can't define object of type Book because Book is abstract
is false. Your code Book new_novel=new MyBook(title,author,p);
is a perfectly good line of code assuming you've defined title
author
and p
already.
I hope you enjoy learing Java!