Answered: Using the attached code as a model,…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Movie List Example

--Showing how to use vectors and structures

#include <iostream>

#include <iomanip>

#include <string>

#include <vector>

using namespace std;

// define a struct for a Movie object

struct Movie // It is common for the struct name to be capitalized

{

string title = ""; // First member of structure - and initialized

int year = 0; // Second member of structure - and initialized

};

int main()

{

cout << "The Movie List program\n\n"

<< "Enter a movie...\n\n";

// get vector of Movie objects

vector<Movie> movie_list;

char another = 'y';

while (tolower(another) == 'y')

{

Movie movie; // make temporary new (initialized) Movie object

cout << "Title: ";

getline(cin, movie.title);

cout << "Year: ";

cin >> movie.year;

movie_list.push_back(movie);

cout << "\nEnter another movie? (y/n): ";

cin >> another;

cin.ignore(); // only extract one character and ignore the rest (flush the buffer)

cout << endl;

}

// display Movie objects in vector

const int w = 10;

cout << left

<< setw(w * 3) << "TITLE"

<< setw(w) << "YEAR" << endl;

for (Movie movie : movie_list)

{

cout << setw(w * 3) << movie.title

<< setw(w) << movie.year << endl << endl;

}

Using the attached code as a model, write a program where each student record is a structure that looks like this:

struct StudentRec

{

string last_name = ""; // Last name

string first_name = ""; // First name

int year_grad = 0; // Year expected to graduate

float gpa = 0.0; // Current gpa

}

The program should ask for the data to fill a studentRec of structure StudentRec and then ask y/n if they want to add another studentRec.

Each studentRec will go into the vector of type StudentRec called student_list.

After the student records have been entered into the vector student_list, find the average gpa of all the students in the vector.
Output all the student records and give the average gpa for the students. Use the iomanip tools to make the data look as nice a possible.

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