Q&A Discussions

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

21st May 2018, 4:51 AM

Michelle

OOJS question

constructor javascript js oop prototype

2 Votes

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

5th Nov 2018, 12:55 PM

Alquen

java

0 Votes

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

27th May 2022, 5:21 AM

animus

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

In most cases, we want a copy constructor in object oriented program in java..I actually do not understand why do we use it!!!!

18th Jun 2016, 3:29 AM

Daniel Ikpeama

java

1 Vote

prog. to point out theLargest , 2ndlargest ,smallest & 2ndsmallest no. in array to the Dynemic memory alloc. & using constructor

5th Mar 2017, 8:50 PM

Rea

allocation c++constructors dynamic memory

1 Vote

Most difficult Question in Java Observe Carefully the Question like and share

30th Oct 2017, 2:01 PM

Vijay Saini

class constructor java method object static

2 Votes

6 Answers

6th Nov 2016, 1:47 PM

Jenny Lance

Can we open a file in constructor of a class with BufferedWriter and write in any other function of same class?

classes constructors file-handling files java objects

0 Votes

Error i am not getting.can anyone find it.

28th Oct 2016, 5:01 AM

lokesh

constructor error in program

0 Votes

I am not getting the answer, its showing value is undefined

7th Nov 2016, 5:40 PM

MSK

class constructor javascript new program this

0 Votes

constructor default java overloading overriding problem

2nd Jul 2020, 10:09 AM

C Alpha Beraka

Constructors in java

2 Votes

Iterator value ani is not an entry object and plzz tell me what's the difference between under constructor and set method ??

18th Feb 2018, 12:22 AM

Aman Kumar Jha

javascript node node.js sololearn

0 Votes

Make a class in the name of circle with data member; radius, perimeter, and area. Use overloaded constructor one with no argumen

12th Sep 2021, 9:20 AM

Aniket Ganguly

c++

-1 Vote

c++class constructor defult error

9th Oct 2022, 5:13 PM

Ayesha Khan

What is the Errors ?

0 Votes

why i m getting w. getA() as 200 if static attributes belong to class then the outcome must be something else.

30th Oct 2020, 11:18 PM

Manar R

constructor getters java setters static

2 Votes

Why does C# have static constructors whereas Java does not?

28th Mar 2017, 12:35 PM

shobhit

block c#c++class constructor initialisation inner java static

5 Votes

I want to see 34 in derived 2 class function too. I wanna see how can I get same answer by making changes through derived 1.

6th Apr 2019, 11:36 PM

Sonic

c++constructor humble inheritance methods oop problem programming

0 Votes

7 Answers

8th Jun 2022, 1:34 PM

Muhammad Talha Atif

Fill in the blanks to declare the class Student, with int data member called age. Student class has a constructor with one argum

a age age.argument blanks called class constructor data declare fill has in int member member.of one sets student that the to value with

-12 Votes

Somebody knows why it doesn’t output 4,2,3 but only number 3 in the linked list

20th Jul 2021, 3:07 AM

FERPLAY.N

algorythm c++class constructor destructor inheritance list lists sort sorting

3 Votes

How do you make an enum not just name a type but work already without a switch statement like a constructor of a class?

15th Dec 2018, 7:22 PM

Nikola

classes enums java objects

0 Votes

Что такое конструктор и чем отличается от метода в C#? What is a constructor and how does it differ from a method in C#?

2nd Dec 2016, 8:41 AM

Trey

c#constructors methods

0 Votes

Fill in the blanks to declare a ''B'' class with its own constructor and a ''D'' class with its own constructor, where ''D'' inh

12th Jul 2024, 6:37 PM

ВолКот

c++inheritance

-4 Votes

Can anyone explain why I need to create a constructor at all when I can just make an regular object and do the same things?

5th Mar 2017, 1:18 PM

Sunita Sharma

constructors java

0 Votes

How can I print value of var n if one of the argument of constructor of a class and var name is same but different values ?

4th Feb 2016, 2:11 PM

Syed Ruman

python3

0 Votes

memory for class object having pointer as data member

7th Nov 2020, 6:23 AM

Rajan K

c++constructor destructor memory pointer

0 Votes

c++constructor customdeleter destructor heap make_shared memory shared_ptr smart_pointer

18th Jun 2020, 9:28 AM

Ketan Lalcheta

Need for custom deleter

2 Votes

What is the need for using Constructor?Can'twe just initialize a data member in a method?

6th Oct 2021, 8:32 AM

Ketan Lalcheta

constructor data importance java members methods of

3 Votes

How can I Call a JavaScript's method declared inside a class?

10th Nov 2018, 5:42 PM

Neelarghya Kundu

bom classes constructor dom html javascript objects oop

1 Vote

5 Answers

11th Jun 2019, 1:23 PM

Kimathi Edwin

Move constructor, move assignment c++

assignment c++class classes constructor copy move operator

0 Votes

Run a function on objet creation

16th Feb 2021, 6:06 AM

Eduardo Perez Regin

constructor function html javascript method object

1 Vote

Why is the base class constructor called before the derived class and the derived class destructor called before based class destructor? Please I need brief explanation on this.

18th Aug 2018, 2:13 PM

Kant1

c++inheritance

0 Votes

Constructors and "Setters" // JAVA

6th Aug 2016, 3:10 PM

shola ola ibrahim

class classes code constructor getter java method methods oop programming setter

3 Votes

9 Answers

13th Jan 2017, 8:18 PM

Daniel Stanciu

Output of C++ code

c++class constructor destructor increment int static vector

0 Votes

Can i access to private class var's? Ex. public class me{ private Int a = 1; private Int b = 20; } then we have the constructor and gets and setters, but in other class can I get the values of a and b? calling class or never because its private? How?

25th May 2021, 4:49 AM

Edward Finkelstein

access-modifiers classes java objects

4 Votes

I need help to better this code please (Javascript)

6th Jul 2016, 12:54 PM

João Lourenço

constructor create function help javascript lots need object objects of

1 Vote

16th Jan 2019, 1:39 AM

Phillip Mark England

Give up? c++ (classes)

c c++class constructor give oop tutorial up

0 Votes