Constructors

38 posts

std::move in Utility in C++ | Move Semantics, Move Constructors and Move Assignment Operators

Last Updated: 11 February 2022

Prerequisites:lvalue referencervalue referenceCopy Semantics (Copy Constructor)References:In C++ there are two types of references-lvalue re ...read more

Algorithms

Competitive Programming

STL

C++

How to export default constructors ?

Last Updated: 21 June 2021

The export statement is used to bind one JavaScript module to others. In order to export the default constructor, we use an export statement...read more

Problem of initialization in C++

Last Updated: 18 April 2022

In this article, we will discuss the problem of initialization in C++, the data members of a class have private scope by default, so they ar ...read more

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Shallow Copy and Deep Copy in C++

Last Updated: 16 June 2022

In general, creating a copy of an object means to create an exact replica of the object having the same literal value, data type, and resour...read more

Life cycle of Objects in C++ with Example

Last Updated: 04 August 2021

In Object Oriented Programming, Objects are the instances of a class which has its own state(variables) and behavior(methods).Every class ha...read more

Move Constructors in C++ with Examples

Last Updated: 01 September 2021

Prerequisites: l-value and r-value references in C++, Copy Constructor in C++.What is a Move Constructor? The copy constructors in C++ work ...read more

new vs malloc() and free() vs delete in C++

Last Updated: 01 November 2023

We use new and delete operators in C++ to dynamically allocate memory whereas malloc() and free() functions are also used for the same purpo ...read more

Articles

C++

Constructors

Dynamic Memory Allocation

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Difference Between

JavaScript Number() Constructor

Last Updated: 24 May 2023

Javascript Number() Constructor is used to create a new number object but, if we call it as a function on another data type it will perform ...read more

Java | Constructors | Question 6

Last Updated: 28 June 2021

[sourcecode language="Java"]final class Complex { private double re, im; public Complex(double re, double im) { this.re = re; ...read more

Constructors

Java-Constructors

Java Quiz

Java | Constructors | Question 3

Last Updated: 28 June 2021

Which of the following is/are true about constructors in Java? 1) Constructor name should be same as class name.2) If you don't define a con ...read more

Constructors

Java-Constructors

Java Quiz

Java | Constructors | Question 2

Last Updated: 28 June 2021

Predict the output of following Java program[sourcecode language="Java"]class T { int t = 20; T() { t = 40; }}class Main { public st ...read more

Constructors

Java-Constructors

Java Quiz

Java | Constructors | Question 1

Last Updated: 28 June 2021

Predict the output?[sourcecode language="Java"]package main;class T { int t = 20;}class Main { public static void main(String args[]) { ...read more

Constructors

Java-Constructors

Java Quiz

C++ | Constructors | Question 14

Last Updated: 28 June 2021

Which of the following is true about constructors.1) They cannot be virtual.2) They cannot be private.3) They are automatically called by ne ...read more

C++ | Constructors | Question 3

Last Updated: 02 December 2021

Output of following program?[tabby title="C++"][sourcecode language="cpp"]#include using namespace std;class Point { Point() ...read more

C++-Constructors

Constructors

C++ Quiz

C++ | Constructors | Question 2

Last Updated: 28 June 2021

When a copy constructor may be called?(A) When an object of the class is returned by value.(B) When an object of the class is passed (to a f ...read more

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