Class.cpp

#include <iostream>
#include <sstream>
using namespace std;

/*
Enter code for class Student here.
Read statement for specification.
*/
class Student{
    private:
    int age;
    string first_name;
    string last_name;
    int standard;
    public:
    void set_age(int yas){
      age=yas;
    } 
    int get_age(){
        return age;
        }
        
    void set_standard(int standart) {
         standard  =standart; 
         }
    int get_standard() {
         return standard;
          }
   
    void set_first_name(string firstname ) {
        first_name =  firstname; }
        
    string get_first_name(){
        return first_name;
        }
        
   void set_last_name(string lastname) { 
     last_name  = lastname ; }
       
    string get_last_name(){
        return last_name;
        }
        
    string to_string(){
      stringstream ss;
      ss << age << "," << first_name << "," << last_name << "," << standard;
      string str = ss.str();
      return str;
        }
};
int main() {
    int age, standard;
    string first_name, last_name;
    
    cin >> age >> first_name >> last_name >> standard;
    
    Student st;
    st.set_age(age);
    st.set_standard(standard);
    st.set_first_name(first_name);
    st.set_last_name(last_name);
    
    cout << st.get_age() << "\n";
    cout << st.get_last_name() << ", " << st.get_first_name() << "\n";
    cout << st.get_standard() << "\n";
    cout << "\n";
    cout << st.to_string();
    
    return 0;
}