constructors.cpp

#include<bits/stdc++.h>

using namespace std;

class Students{
  public:
  int rollNo,age;
  string name;
  int *check = new int;
  Students(string s);

  //constructor inside class
  Students(){
    cout<<"Enter Name: \n";
    cin>>name;
    cout<<"Enter RollNo: \n";
    cin>>rollNo;
    age = 21;
    * check = 123;
    cout<<endl;
  }

  ~Students(){
    cout<<"Deletd\n";
  }

};

// Constructor OutSide Class
Students::Students(string s){
  name = s;
  rollNo = 5000;
  age = 22;
}


int main(){

  Students raunit;
  cout<<raunit.name<<endl;
  Students other("Verma");
  cout<<other.name<<endl;

  Students raunitCopy(raunit);
  // shallow copy example
  *raunit.check=321;
  cout<<*raunitCopy.check<<endl;

  
  return 0;
}