Question

Programming in C/C++

• Submit your source code files (all .h and .cpp files)
• NO GLOBAL VARIABLES

Program: Use operator overloaded functions for a birthday club – Based on Chapter 11 lecture (25 pts)

Make a class called Birthday that will have a date of month, day, and year and the name.

Need to have overloaded operators to compare values along with regular functions like:

• Overload operator == that takes a Birthdate, compares against the current date values, and returns a boolean
• Overload operator > that takes a Birthdate, compares against the current date values (years are the most significant down to least significant day)
• Also need getName (not overloaded)
• And setBirthdate, that will take the month, day, year and name

Have a friend function of operator<<:

It will have the prototype of: ostream& operator<<(ostream&, Birthdate&);

With that operator<<, you need to return the ostream& parameter to ensure the output stream works properly.

Then create two functions: sort and search

They will take the array of BirthDate and either sort or search – just regular functions that are NOT part of the BirthDate class (but they do use the overloaded operators).

Main should print your name “birthday club” then create an array of Birthdate, open a data file, and read in the birthdays and name into the array (assume that the name is a single word). Sort the array using the bubblesort and the overloaded operator of > to sort by date. Print the entire array then have a do/while loop that will input a date and search for it (a simple search is fine). Have it print the index if found, else print “not found”. Have it end on negative values.

Create a data file with values such as:

12 15 1988 Mustang Sally

1 31 1967 George Porge

4 7 1992 Nancy Meme

7 9 2001 Tim Breakum

10 23 1978 Markus Mark IV

9 1 1984 Bill Jones

To test the program with.

10 points extra credit, add to the program to template the bubblesort and have a double array of 10 monetary values (cash gifts) random from $1 to $49.99, sort that array also, and print the cash gifts formatted.

Answer 1

// C++ program to create and implement the BirthDate class

#include <iostream>

#include <fstream>

#include <string>

using namespace std;

class BirthDate

{

               int day,month,year;

               string name;

public:

               string getName() const;

               void setBirthdate(int month, int day, int year, string name);

               bool operator==(const BirthDate & other);

               bool operator>(const BirthDate &other);

               friend ostream& operator<<(ostream& out, const BirthDate &other);

};

// return the name

string BirthDate::getName() const

{

               return name;

}

// sets the birthdate and name

void BirthDate::setBirthdate(int month, int day, int year, string name)

{

               this->name = name;

               this->day = day;

               this->month = month;

               this->year = year;

}

// returns if 2 birthdate objects are equal

bool BirthDate::operator ==(const BirthDate &other)

{

               return(year == other.year && month == other.month && day == other.day);

}

// returns if this date is greater than other date(greater respect to more latest)

bool BirthDate::operator >(const BirthDate &other)

{

               if(year > other.year)

                              return true;

               else if(year < other.year)

                              return false;

               else

               {

                              if(month > other.month)

                                             return true;

                              else if(month < other.month)

                                             return false;

                              else

                              {

                                             if(day > other.day)

                                                            return true;

                                             else

                                                            return false;

                              }

               }

}

ostream& operator<<(ostream &out, const BirthDate &other)

{

               out<<other.name.substr(0,other.name.length()-1)<<" : "<<other.month<<"/"<<other.day<<"/"<<other.year;

               return out;

}

//end of BirthDate class

void sort(BirthDate birthdays[], int size);

int search(BirthDate birthdays[], int size, BirthDate key);

void sort(double arr[10], int size);

int main() {

               cout<<" birthday club "<<endl;

               BirthDate birthdays[10]; // create array of max size 10

               int size=0;

               ifstream fin("birthdate.txt"); // provide the path to the file

               int day,month,year;

               string name;

               if(fin.is_open()) // check if file exists

               {

                              while(!fin.eof()) // loop over the file and create BirthDate objects

                              {

                                             fin>>month>>day>>year;

                                             getline(fin,name);

                                             birthdays[size].setBirthdate(month,day,year,name);

                                             size++;

                              }

                              fin.close();

                              sort(birthdays,size);

                              for(int i=0;i<size;i++)

                                             cout<<birthdays[i]<<endl;

                              do // loop to search for birthdates

                              {

                                             cout<<" Enter month, day and year values to search(separated by space, negative values to end) : ";

                                             cin>>month>>day>>year;

                                             if(month < 0 || day < 0 || year < 0)

                                                            break;

                                             BirthDate key;

                                             key.setBirthdate(month,day,year," ");

                                             int index = search(birthdays,size,key);

                                             if(index < 0)

                                                            cout<<" Not found"<<endl;

                                             else

                                                            cout<<" Birthdate found at index : "<<index<<endl;

                              }while(true);

               }else

                              cout<<" File doesn't exists"<<endl;

               return 0;

}

// sort the birthdays in ascending order

void sort(BirthDate birthdays[], int size)

{

               for(int i=0;i<size-1;i++)

               {

                              for(int j=0;j<size-1-i;j++)

                              {

                                             if(birthdays[j] > birthdays[j+1])

                                             {

                                                            BirthDate temp = birthdays[j];

                                                            birthdays[j] = birthdays[j+1];

                                                            birthdays[j+1] = temp;

                                             }

                              }

               }

}

// serach for a birthday in the array

int search(BirthDate birthdays[], int size, BirthDate key)

{

               for(int i=0;i<size;i++)

               {

                              if(birthdays[i] == key)

                                             return i;

               }

               return -1;

}

// sort double array of size 10

void sort(double arr[10], int size)

{

               for(int i=0;i<size-1;i++)

               {

                              for(int j=0;j<size-1-i;j++)

                                             if(arr[j] > arr[j+1])

                                             {

                                                            double temp = arr[j];

                                                            arr[j] = arr[j+1];

                                                            arr[j+1] = temp;

                                             }

               }

}

//end of program

Output:

Input file:

Output: