class of book.cpp

#include<iostream>
usingnamespacestd;

classbook {
int pages;
int ISSN;
public:
//Special member function => Constructor
//No parameter constructor => Default Constructor
book() {
 pages = 103;
 ISSN = 4;
 }

//Parameterised Constructor
book(int page, int issn) {
 pages = page;
 ISSN = issn;
 }

voiddisplay() {
 cout<<"pages: "<<pages<<endl;
 cout<<"issn: "<<ISSN<<endl;
 }
};

intmain() {
// your code goes here
 book holy, sherlock(8, 500), madman;
 holy.display();
 sherlock.display();
 madman.display();
return0;
}
/*#include <iostream>
using namespace std;

class book {
 int pages;
 int ISBN;
 public:
 //Default constructor
 book() {
 pages = 350;
 ISBN = 1234;
 }

 //Parameterised constructor
 book(int Pages, int isbn) {
 pages = Pages;
 ISBN = isbn;
 }

 void display() {
 cout<<"Pages : "<<pages<<endl;
 cout<<"ISBN : "<<ISBN<<endl;
 }

};

int main() {
 // your code goes here
 book OOPS, OOPS1(300, 4567);
 OOPS.display();
 OOPS1.display();
 return 0;
}*/