Question

Constructors are special methods included in class definitions. a. What is a constructor used for? b. How do constructors differ from other methods in a class?

Answer 1

Answer:

(a)A constructor is a special method which is used the initialize the class that means the initialize the object of a class.

(b)There is the following difference between constructor and method in a class.

1. Constructor name has the same name as the class name we do not give any other name to the constructor, on the other hand, it is possible in function to giving any name to function.

2. The constructor does not have return type such as int, void, etc on the other hand function must have a return type.

3.constructor does not return any value on the other hand function are returning the value.

Explanation:

Following are the program of constructor in c++

#include <iostream> // header file

using namespace std; // namespace

class constructor1

{

   public:

   constructor1() // default constuctor

   {

       cout<<" hello brainly:"<<endl;  

   }

void fun() // fuuction

{

cout<< "function:";

}

};

int main() // main function

{

constructor1 ob; // creating object it call default constructor

ob.fun();//  calling the function fun()

  return 0;

}

Output:hello brainly:

function:

In this program, we create a class and create a function "fun" and "default "constructor "from the main function we create the object of a class which calls the default constructor and with the help of object we call the function fun.