Pewarisan atribut kelas

Di awal bab ini, Anda mempelajari atribut dan metode kelas yang dibagikan oleh semua instance dari sebuah kelas. Bagaimana cara kerjanya dengan pewarisan?

Dalam latihan ini, Anda akan membuat subkelas dari kelas Player dari pelajaran pertama bab ini, dan menelusuri pewarisan atribut dan metode kelas.

Kelas Player telah disediakan. Ingat bahwa kelas Player memiliki dua atribut tingkat kelas: MAX_POSITION dan MAX_SPEED, dengan nilai default 10 dan 3.

Latihan ini merupakan bagian dari kursus

Pemrograman Berorientasi Objek di Python

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Cobalah latihan ini dengan melengkapi kode contoh ini.

# Create a Racer class and set MAX_SPEED to 5
____
 
# Create a Player and a Racer objects
p = ____
r = ____

print("p.MAX_SPEED = ", p.MAX_SPEED)
print("r.MAX_SPEED = ", r.MAX_SPEED)

print("p.MAX_POSITION = ", p.MAX_POSITION)
print("r.MAX_POSITION = ", r.MAX_POSITION)

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Latihan ini merupakan bagian dari kursus

Pemrograman Berorientasi Objek di Python

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Mulai Kursus Gratis

In this chapter, you'll learn what object-oriented programming (OOP) is, how it differs from procedural-programming, and how it can be applied. You'll then define your own classes, and learn how to create methods, attributes, and constructors.

Exercise 1: What is OOP?Exercise 2: OOP termininology Exercise 3: Exploring object interface Exercise 4: Class anatomy: attributes and methods Exercise 5: Understanding class definitions Exercise 6: Create your first class Exercise 7: Using attributes in class definition Exercise 8: Class anatomy: the __init__ constructor Exercise 9: Correct use of __init__Exercise 10: Add a class constructor Exercise 11: Write a class from scratch

Inheritance and polymorphism are the core concepts of OOP that enable efficient and consistent code reuse. Learn how to inherit from a class, customize and redefine methods, and review the differences between class-level data and instance-level data.

Exercise 1: Data instance dan kelas Exercise 2: Atribut tingkat kelas Exercise 3: Mengubah atribut kelas Exercise 4: Konstruktor alternatif Exercise 5: Pewarisan kelas Exercise 6: Memahami inheritance Exercise 7: Buat sebuah subkelas Exercise 8: Menyesuaikan fungsionalitas melalui pewarisan Exercise 9: Pewarisan metode Exercise 10: Pewarisan atribut kelas

Latihan Saat Ini

Exercise 11: Menyesuaikan DataFrame

In this chapter, you'll learn how to make sure that objects that store the same data are considered equal, how to define and customize string representations of objects, and even how to create new error types. Through interactive exercises, you’ll learn how to further customize your classes to make them work more like standard Python data types.

Exercise 1: Operator overloading: comparison Exercise 2: Overloading equality Exercise 3: Checking class equality Exercise 4: Comparison and inheritance Exercise 5: Operator overloading: string representation Exercise 6: String formatting review Exercise 7: String representation of objects Exercise 8: Exceptions Exercise 9: Catching exceptions Exercise 10: Custom exceptions Exercise 11: Handling exception hierarchies

How do you design classes for inheritance? Does Python have private attributes? Is it possible to control attribute access? You'll find answers to these questions (and more) as you learn class design best practices.

Exercise 1: Designing for inheritance and polymorphism Exercise 2: Polymorphic methods Exercise 3: Square and rectangle Exercise 4: Managing data access: private attributes Exercise 5: Attribute naming conventions Exercise 6: Using internal attributes Exercise 7: Properties Exercise 8: What do properties do?Exercise 9: Create and set properties Exercise 10: Read-only properties Exercise 11: Congratulations!