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  1. Prepare
  2. Tutorials
  3. 30 Days of Code
  4. Day 13: Abstract Classes
  5. Discussions

Day 13: Abstract Classes

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593 Discussions

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  • nhattan214
     + 0 comments
    from abc import ABCMeta, abstractmethod
class Book(object, metaclass=ABCMeta):
    def __init__(self,title,author):
        self.title=title
        self.author=author   
    @abstractmethod
    def display(): pass

#Write MyBook class
class MyBook(Book):
    def __init__(self, title, author, price):
        super().__init__(title,author)
        self.price = price
    def display(self):
        print('Title:',self.title)
        print('Author:',self.author)
        print('Price:',self.price)

title=input()
author=input()
price=int(input())
new_novel=MyBook(title,author,price)
new_novel.display()

  • jaykipkerich
     + 0 comments

    Python 3

    from abc import ABCMeta, abstractmethod class Book(object, metaclass=ABCMeta): def init(self,title,author): self.title=title self.author=author
    @abstractmethod def display(): pass

    Write MyBook class

    class MyBook: def init(self, title, author, price): self.title = title self.author = author self.price = price def display(self):

        print(f"Title: {self.title}")
    print(f"Author: {self.author}")
    print(f"Price: {self.price}")

    title=input() author=input() price=int(input()) new_novel=MyBook(title,author,price) new_novel.display()

  • tharindudakshin3
     + 0 comments

    ----------------MY full code ----- import java.io.; import java.util.;

    abstract class Book { String title; String author;

    Book(String title, String author) {
    this.title = title;
    this.author = author;
}

abstract void display();

    }

    class MyBook extends Book { int price;

    MyBook(String title, String author, int price) {
    super(title, author);
    this.price = price;
}

void display() {
    System.out.println("Title: " + title);
    System.out.println("Author: " + author);
    System.out.println("Price: " + price);
}

    }

    public class Solution {

    public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);

    String title = scanner.nextLine();
    String author = scanner.nextLine();
    int price = scanner.nextInt();
    scanner.close();

    Book new_novel = new MyBook(title, author, price);
    new_novel.display();
}

    }

  • tharindudakshin3
     + 0 comments

    abstract class Book { String title; String author;

    Book(String title, String author) {
    this.title = title;
    this.author = author;
}

abstract void display();

    }

    class MyBook extends Book { int price;

    MyBook(String title, String author, int price) {
    super(title, author);
    this.price = price;
}

void display() {
    System.out.println("Title: " + title);
    System.out.println("Author: " + author);
    System.out.println("Price: " + price);
}

    }

  • parsanaderi2004
     + 1 comment

    Just MyBook class Python implementation code:

    # Write MyBook class
class MyBook(Book):
    def __init__(self, title, author, price):
        self.title = title
        self.author = author
        self.price = price
        
    def display(self):
        print(f"Title: {self.title}")
        print(f"Author: {self.author}")
        print(f"Price: {self.price}")