Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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#include <iostream>
#include <iomanip>
#include <string>
#include <vector >
using namespace std;
class Movie
{
private:
string title = "";
int year = 0;
public:
void set_title(string title_param);
string get_title() const; // "const" safeguards class variable changes within function
string get_title_upper() const;
void set_year(int year_param);
int get_year() const;
}; // NOTICE: Class declaration ends with semicolon!
void Movie::set_title(string title_param)
{
title = title_param;
}
string Movie::get_title() const
{
return title;
}
string Movie::get_title_upper() const
{
string title_upper;
for (char c : title) {
title_upper.push_back(toupper(c));
}
return title_upper;
}
void Movie::set_year(int year_param)
{
year = year_param;
}
int Movie::get_year() const
{
return year;
}
int main()
{
cout << "The Movie List program\n\n"
<< "Enter a movie...\n\n";
// get vector of Movie objects
vector<Movie> movies;
char another = 'y';
while (tolower(another) == 'y')
{
Movie movie;
string title;
cout << "Title: ";
getline(cin, title);
movie.set_title(title);
int year;
cout << "Year: ";
cin >> year;
movie.set_year(year);
movies.push_back(movie);
cout << "\nEnter another movie? (y/n): ";
cin >> another;
cin.ignore();
cout << endl;
}
// display the movies
const int w = 10;
cout << left
<< setw(w * 3) << "TITLE"
<< setw(w) << "YEAR" << endl;
for (Movie movie : movies)
{
cout << setw(w * 3) << movie.get_title()
<< setw(w) << movie.get_year() << endl;
}
cout << endl;
// Output with titles in ALL CAPS
for (Movie movie : movies)
{
cout << setw(w * 3) << movie.get_title_upper()
<< setw(w) << movie.get_year() << endl;
}
cout << endl;
return 0;
}
Using C++
- Using the attached code as a "model", write a program where each student record is constructed using the class StudentRec.
- The variables in this case are "private" and the functions are "public."
- Note: only the first_name and last_name variables will require "getter" functions that return the name in all caps:
get_first_name_upper() and get_last_name_upper() functions.
- Your class declaration section should look something like this:
class StudentRec
{
private
string first_name = ""; // First name
string middle_name = ""; // Middle name
string last_name = ""; // Last name
int year_grad = 0; // Year expected to graduate
float gpa = 0.0; // Current gpa
public:
void set_last_name(string last_name_param);
string get_last_name() const;
string get_last_name_upper() const;
// the rest of the "setter" and "getter" functions for each variable above go here
}; // NOTE: a class declaration ends with a semicolon
- 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.
- Write excellent comments:
- At the top to show your name, the class, and what the program does.
- For each function.
- Critical or tricky parts that might be difficult to understand without a comment.
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