C++ Constructor2 min read

In C++, a constructor is a special type of method that is called automatically when an instance of the class (object) is created. The compiler calls the constructor and is used to initialize the data members of a newly created object.

The constructor has the same name as its class. Also, it doe not have any return type not even void.

Let us first look at the syntax of constructor in c++


Types of Constructor in C++

  1. Default constructor
  2. Parameterized constructor

C++ Default constructor

The constructor with no arguments is called a default constructor.

Let us look into the example of the C++ default Constructor.

Output:

Side: 12.4

Note: Default Constructor is used if the user does not define a constructor then the compiler creates a default constructor and initializes the member variables to its default values.


C++ Parameterized Constructor

A Constructor having a specific number of parameters is called Parameterized Constructor. Passing parameters is useful when you want to assign an initial value to an object at the time of its creation.

Let us look into the example of the C++ Parameterized Constructor.

Output:

Area: 24
Area: 9.8


MORE

String Pattern Programs in C

In this tutorial, we will write various C pattern programs for String. Before that, you may go through the following topics in C. for loop …
Read More

Java Program to Find pair of Integers in Array whose sum is given Number

In this tutorial, we will write a program to find a pair of elements from an array whose sum equals a given number in java …
Read More

Program to Print Diamond Alphabet Patterns in C

In this tutorial, we will learn to write a C program to print Diamond patterns using alphabets/characters. However, in this tutorial, we will create a …
Read More

Half Diamond Pattern in C using Alphabets

In this tutorial, we will learn and code the half diamond alphabet patterns in C programming language. However, in this tutorial, we will create a …
Read More

Half Pyramid of Alphabets in C

In this tutorial, we will learn and code alphabet patterns in C programming language specifically the Half pyramid of alphabets in C programming. However, in …
Read More

Inverted Half Pyramid Pattern of Alphabets in C

In this tutorial, we will write a C program to print half Pyramid using alphabets/characters. Before that, you may go through the following topic in …
Read More