Instantiation in Object-Oriented Programming

IndividualizedEnglishHorn avatar

Start Quiz

Study Flashcards

6 Questions

What is instantiation in the context of object-oriented programming?

Creating a new instance of a class

How is an object instantiated in Python when the constructor requires no parameters?

w = Widget()

What does the term 'literal form' refer to in Python's object instantiation?

Designating new instances directly

When would you use a syntax like 'Widget(a, b, c)' for instantiation?

To create a new instance with specific parameters

How can a new instance of a list class be created indirectly in Python?

Call the sorted function

Which of the following is NOT mentioned as a method for creating new instances in Python?

Calling the 'destroy' function

Study Notes

Instantiation in Object-Oriented Programming

  • Instantiation in OOP creates an object from a class, where the object is an instance of the class

Object Instantiation in Python

  • In Python, an object is instantiated by calling the class as a function and passing in any required arguments
  • If the constructor requires no parameters, an object is instantiated by calling the class without arguments, e.g., MyClass()

Literal Form in Python

  • In Python, literal form refers to the direct creation of an object, e.g., list() or 10 for an integer
  • Literal form is a concise way to create objects in Python

Syntax for Instantiation

  • The syntax Widget(a, b, c) is used for instantiation when the class constructor requires arguments, e.g., a, b, and c

Creating a List Instance in Python

  • A new instance of a list class can be created indirectly in Python by using the list() function or by using the literal form, e.g., []

Methods for Creating New Instances in Python

  • The following are methods for creating new instances in Python: literal form, direct creation using the list() function, and calling the class as a function
  • Using __new__ method is NOT mentioned as a method for creating new instances in Python

Learn about the process of creating a new instance of a class through instantiation in object-oriented programming. Understand the syntax for instantiating an object by invoking the constructor of a class with or without parameters.

Make Your Own Quizzes and Flashcards

Convert your notes into interactive study material.

Get started for free

More Quizzes Like This

Object Creation in Java
15 questions

Object Creation in Java

SelfDeterminationOrange avatar
Using Object Initializers in C#
18 questions
Java Thread Instantiation and Usage
18 questions
Use Quizgecko on...