Copy constructor vs constructor

0 votes
What is the difference between a copy constructor and a constructor?
Aug 14, 2019 in Python by Fata
• 1,050 points
8,159 views

1 answer to this question.

0 votes

Constructor: It is a method which has the same name as the class which is used to create an instance of the class.

Copy Constructor: Used to create an object by copying variables from another object of the same class. The main purpose is to create a new object from an existing one by copying variables. 

answered Aug 14, 2019 by Wajiha
• 1,960 points

Related Questions In Python

0 votes
1 answer

How to hide a window in the constructor immediately after creation?

You can use QtCore.QTimer class Example(QWidget):     def __init__(self, app):         QWidget.__init__(self)         QTimer.singleShot(0, ...READ MORE

answered Apr 17, 2018 in Python by anonymous
927 views
0 votes
1 answer

SKLearn NMF Vs Custom NMF

The choice of the optimizer has a ...READ MORE

answered May 9, 2018 in Python by charlie_brown
• 7,720 points
1,745 views
0 votes
2 answers

How do I copy a file in python?

copy a file in python  from shutil ...READ MORE

answered Mar 27, 2019 in Python by rajesh
• 1,270 points
1,342 views
+1 vote
3 answers

Difference between append vs. extend list methods in Python

Python append() method adds an element to ...READ MORE

answered Aug 21, 2019 in Python by germyrinn
• 240 points
96,879 views
0 votes
1 answer

Python constructors and __init__

There is no function overloading in Python, ...READ MORE

answered Oct 11, 2018 in Python by SDeb
• 13,300 points
1,122 views
0 votes
1 answer

What is this weird colon-member (" : ") syntax in the constructor?

Foo(int num): bar(num) In C++, this is known as a Member Initializer List. Simply put, it sets the value of your member bar to num. There is a significant difference between initializing a member with the Member initializer list and assigning a value to it within the function Object() { [native code] } body. When you use the Member initializer list to initialise fields, the constructors are only called once, and the object is constructed and initialised in a single operation. If you use assignment, the fields will be initialised with default constructors and then reassigned with actual values (via the assignment operator). As you can see, there is an extra overhead of creation and assignment in the latter, which may be significant for user defined classes. Cost of Member Initialization =Object ...READ MORE

answered May 27, 2022 in Others by Damon
• 4,960 points
1,553 views
0 votes
1 answer

why are copy constructors needed and what are the cases where they are very helpful?

A copy constructor is a member function ...READ MORE

answered May 31, 2022 in C++ by Damon
• 4,960 points
850 views
0 votes
1 answer

TypeScript: Class Constructor type

class Zoo<T extends Animal> { ...READ MORE

answered Jun 8, 2022 in TypeSript by Nina
• 3,060 points
3,123 views
0 votes
1 answer

Generator Expressions vs. List Comprehension

Generator expression resemble list comprehensions. List comprehensions ...READ MORE

answered Jul 15, 2019 in Python by Wajiha
• 1,960 points
1,104 views
0 votes
1 answer

Difference between constructor and method

Method: It a function which is the member ...READ MORE

answered Aug 14, 2019 in Python by Wajiha
• 1,960 points
4,426 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP