// Demo: This is the wrong way to
//     : update the name,id,class
//     : by entering directly in the main program
//
#include <iostream>
#include <string>
#include <iomanip>
using namespace std;
class Student {
  private:
    string id,name,class_no;
  public:
    Student(){ id="id00";
               name="none";
               class_no="00";
               } // initial values given for very student
    void show() {
     cout << left << setw(5) << id <<
             setw(15) << name << class_no << endl;
     }
     void enter(); // update name only
};
void Student::enter() {  // updates name, but not id and class_no
   cout << "enter name ";
   getline(cin,name);
}

void main() {
 Student x,y; // create 2 students x and y
 string name,id,class_no;

 x.show();  // display student x"id00  none  00"

 // enter name,id,class_no
  cout << "enter id " ;    getline(cin,id);  // enter A123
  cout << "enter name ";   getline(cin,name);  // enter TAN
  cout << "enter class no "; getline (cin,class_no); // enter 44

 x.show();   //  display "id00 mone 00" for student x. NOT UPDATED
}
/* output when program is runned
id00 none           00
id A123
name TAN
class no 44
id00 none           00
*/