Q&amp;A Discussions

IN CPP Using class initializer list?

18th Oct 2019, 1:28 PM

#ArizmaAltair PATHAN

constructor initializer_list oops

1 Vote

BASE CLASS CONSTRUCTORS AND DESTRUCTORS ARE NOT INHERITED TO DERVIED CLASS ..THEN HOW THIS ...

2nd Mar 2018, 4:56 PM

Melodemon Alpheus

constructor destructors inheritance

1 Vote

In a class,if we have a constructor and methods with same name and without argument is this is possible to have like this?

6th Nov 2017, 4:47 PM

I'm_Groot

i needit

0 Votes

7 Answers

29th Jul 2017, 4:25 PM

vani s

In OO languages, what is the advantage of using factory methods and private constructors to create objects?

advantage constructor factory method oo private

6 Votes

8 Answers

15th Dec 2019, 11:13 PM

Sonic

Why, when I input 42 to the circle constructor the area gives me 5541.769440932395 while the correct answer is 5541.769440932396

abstractclass inheritance java oop

1 Vote

Why not able to use initializer list

27th Dec 2022, 10:34 PM

Genniell Vergaray

c++constructor initializer_list

0 Votes

Java: How can the object of parent class call the parameterized constructor of child class while it's not the other way around?

27th May 2022, 11:47 AM

Ketan Lalcheta

classes constructors java objects

0 Votes

Why we need to call super() method in default constructor?? why we need to parent class constructor ?? why it is compulsory?

26th Apr 2022, 9:36 PM

Farzam Baig

constructors java oop

1 Vote

9th Oct 2017, 9:20 AM

Ankit Singh Rawat

How to make a site?

constructor css html js

0 Votes

It is successfully Compiled but The Result is null. Why

13th Nov 2021, 9:12 AM

Матвей Барканов

conditional constructor if input java

1 Vote

How do you know when you have too many methods on the prototype/constructor and how can you plan to use a fair amount of each?

9th Mar 2023, 8:05 AM

We Doru

classes constructor javascript memory objects prototype

4 Votes

If a class that inherits from another class automatically also inherits its constructor then why bother using super().__init__?

6th Jan 2019, 10:47 PM

Thomas Czernek

python python3

0 Votes

C++ How to avoid Object Slicing with derived classes being stored in base vector

28th Apr 2022, 8:07 AM

Lenoname

c++constructor object slicing

0 Votes

What's the advantage of member initializers?

10th Apr 2020, 4:22 PM

Tyler

c++constructor initializer member

2 Votes

JS : What exactly is CLASS and in what case do you need it?

5th Apr 2019, 7:54 PM

HonFu

class constructor js purpose use

3 Votes

If I inherit derived class from base class as private what will be the order of constructor and destructor?

2nd Jan 2022, 6:13 AM

Ginfio

c++inheritance

1 Vote

if a sub class besides those inherited attributes has it's own attribute how should the constructor look like?

30th Aug 2016, 4:53 PM

Sunitha Ganti

java

0 Votes

How do I pass arguments to the superclass constructor while creating an object of the subclass in this case?

21st Sep 2022, 10:37 PM

Lenoname

inheritance

1 Vote

[javascript] Syntax for adding method to retrieve properties from that class?

15th May 2019, 1:56 AM

Debraj Singh

class constructor javascript method

0 Votes

constructor destructor php

6th Dec 2017, 7:38 AM

Joe

Destructor + unset

0 Votes

When we create objects of one class its constructor is invoked and we call its destructor then can we again use the object after

8th Jun 2019, 5:23 PM

Maksym Biliaievskyi

constructors

3 Votes

Problems with object constructors

24th Oct 2021, 12:55 PM

Abhishek Pandey

constructor html javascript js object objects web

7 Votes

14 Answers

15th Nov 2017, 10:04 PM

Jay

How to write constructor for class B if it is a derived class of A? How to instantiate?

c++constructors inheritance

0 Votes

From the code given below, the output should be 12(because constructor never inherit ) but it is 112 . How? Someone can explain.

23rd Nov 2016, 1:51 PM

Marcell Juhasz

c++constructors inheritance

0 Votes

OOP with JS ,, Could you help me with OOJS ? Object-oriented javaScript

21st Dec 2016, 4:09 AM

blumen

class constructor javascript objects oop

1 Vote

why destructor in this code doesn't runs in visual studio's console application

19th May 2020, 8:45 PM

Raven

c++constructor destructors error sololearn

2 Votes

Constructor Chaining in Java Please help what is wrong in this code as it does not compile and throws exception at this(hello())

27th Aug 2018, 4:56 PM

Suraj Jha

constructors inheritance java super this

0 Votes

Is use of constructor in any program good or bad, if bad. What is another solution for construction based problems?

23rd Aug 2020, 10:18 AM

anshu kulshrestha

c++python3

0 Votes

C#, I'm struggling with everything. Please assist.

6th Oct 2019, 3:22 PM

Pushpendra Singh

constructor inheritance polymorphism

0 Votes

what if i declare a parameter inside constructor which has private access specifier, would parameter also be private?

18th Aug 2017, 10:43 AM

Mncedisi Nceddy Mzizi

cpp

0 Votes

Although we have a default protected constructor in abstract class , why we can't create a new instance from it?

13th Aug 2018, 2:21 PM

Arush Joshi

abstract-classes c#oop

1 Vote

(a) When p3 object is created, specify which constructor gets invoked and why? (b) Write complete definition for Constructor3.

2nd Aug 2017, 4:01 PM

Amin Saadati

and constructors des

0 Votes

Why do we make an object constructor using this keyword and don't we simple write return { a: x, b:y} in the function?

29th May 2018, 6:29 AM

heer patel

javascript

2 Votes

Is a globally declare function whose name is same as that of class can be a constructor in c++?

27th Oct 2020, 5:27 PM

Karak10

constructors declare globally

0 Votes

Why 6 calls to destructor for 5 objects?

16th Feb 2017, 1:08 PM

Deepika Behera

c++constructor copy-constructor destructor vector

1 Vote

I really want to know what is constructor function? I make plenty of research on it but still I did not get exactly what it is.

30th Jun 2022, 9:31 PM

Edward Finkelstein

c#java

0 Votes

Anyone can explain this?? Generally a constructor of base class doesn't inherit to derived class..... But here I'm confused...

3rd Oct 2021, 11:30 AM

Azzuro

c++classes constructors

0 Votes

Constructor of every object in vector is called everytime I add a new element. How do I resolve this?

9th Sep 2017, 2:06 PM

Harsha Sanju

c++

0 Votes

Is there any difference between creating new object with the default copy constructor and declaring a reference to it?

27th Mar 2017, 1:09 PM

denzal maradona

c++copy_constructor reference

0 Votes

Why do we need a constructor to set up start values for attributes when we can already set them right after declaring attributes

26th Nov 2016, 3:29 PM

Marcell Juhasz

attributes constructors

1 Vote

C++ Class Constructors and Destructors Access Specifiers

27th Apr 2017, 4:20 PM

Tina

access-specifier c++class constructor destructor

1 Vote

Throwing exception during object creation

6th Sep 2020, 5:13 AM

Edward Finkelstein

bestpractice constructor exception oop technique

0 Votes

How should the class look like?

7th Jan 2022, 10:03 AM

Agnes Ahlberg

c++char class constructor cpp

0 Votes

Unexpected Inheritance Output

1st Sep 2020, 1:55 PM

Oliver

c++constructor destructor inheritance output

0 Votes

Why does the part between line 2 to 4 executes first when we know that Constructor gets invoked first always ?

21st May 2018, 4:51 AM

Michelle

java

0 Votes

27th May 2022, 5:21 AM

animus

OOJS question

constructor javascript js oop prototype

2 Votes

adding birthday class to person class gives error when I separate the constructor creation for person between person.h and person.cpp

5th Nov 2018, 12:55 PM

Alquen

c++classes

-1 Vote

I'm not understanding how default constructors are used. How would I go about displaying the default constructor or is it not actually something that gets displayed?

7th Jul 2016, 9:23 PM

George Udosen

c#constructors

1 Vote