#include <iostream.h>
#include <dos.h>
#include <conio.h>
#include <stdlib.h>

class Student {
private:
  char first_name[80];
  char middle_initial;
  char last_name[80];
  int year_in_school;
  int age;
  int resident;  // used as a boolean
  long student_id;
  char major[80];
  float gpa;

public:
  void query_user(void);
  void print_info(void);
};

void error(char estring[]);

void Student::query_user(void)
{
  // Get student's name
  cout << "First name: ";
  cin >> first_name;

  cout << "Middle initial: ";
  cin >> middle_initial;

  cout << "Last name: ";
  cin >> last_name;

  cout << "age: ";
  cin >> age;

  if((age <= 0) || (age > 99)) {
    error("Age must be between 1 and 99");
  }

  cout << "Year in school (0 = freshman, 1 = sophomore, etc.): ";
  cin >> year_in_school;

  if(year_in_school < 0) {
    error("Year in school must be positive");
  }

  cout << "Resident(enter 1) or Non-resident (enter 0): ";
  cin >> resident;

  if( (resident != 0) && (resident != 1)) {
    error("Resident must be 0 or 1");
  }

  cout << "Student Id (without -'s): ";
  cin >> student_id;

  cout << "Major (abbreviation, e.g. CSCI): ";
  cin >> major;

  cout << "GPA: ";
  cin >> gpa;

  if((gpa < 0.0) || (gpa > 4.0)) {
    error("GPA must be between 0.0 and 4.0");
  }

}

void Student::print_info(void)
{
  clrscr();
  cout << "Name: " 
       << first_name << " " << middle_initial << " " << last_name << "\n";

  cout << "Age: " << age << "\n";

  cout << "Year: " << year_in_school << "\n";

  cout << "Resident/Non-resident: " << resident << "\n";
  
  cout << "Student Id: " << student_id << "\n";
  
  cout << "Major: " << major << "\n";

  cout << "GPA: " << gpa << "\n";

  cout << "\n\nEnter any key to exit\n";

  getch();
}


void main(void)
{
  Student stu;

  stu.query_user();
  stu.print_info();

}


void error(char estring[])
{
  cout << "\n" << estring << "\n";
  sleep(5);
  exit(-1);
}