Question

The manager of the Telemarketing Group has asked you to write a program that will help order- entry operators look up product prices. The program should prompt the user to enter a product number, and will then display the title, description, and price of the product. The program will consist of the following functions.

getProdNum: it asks the user to enter a product number. Please be sure to reject any value out of the range of correct product numbers.

C++

binarySearch: to search an array for a product.

displayProd: to display the title, and the price of the product.

design a class to do the previous job and please submit a compressed folder with(header file, implementation, main program, and screenshot of the results.)

Answer 1

Code according to given instructions.

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product.h

-----------------------------------

#include <string>

using namespace std;

class product{

private:

string title,description;

int id;

float price;

public:

product();

product(int id,string title,string description,float price);

void setID(int id);

void setTitle(string title);

void setDescription(string description);

void setPrice(float price);

int getID();

string getTitle();

string getDescription();

float getPrice();

void displayProd();

};

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product.cpp

----------------------------------------

#include <iostream>

#include <string>

#include "product.h"

using namespace std;

product::product(){

}

product::product(int id,string title,string description,float price){

this->id=id;

this->title=title;

this->description=description;

this->price=price;

}

void product::setID(int id){

this->id=id;

}

void product::setTitle(string title){

this->title=title;

}

void product::setDescription(string description){

this->description=description;

}

void product::setPrice(float price){

this->price=price;

}

int product::getID(){

return this->id;

}

string product::getTitle(){

return this->title;

}

string product::getDescription(){

return this->description;

}

float product::getPrice(){

return this->price;

}

void product::displayProd(){

cout<<"Title:"<<this->title<<"\nDescription: "<<this->description<<"\nPrice: "<<this->price<<endl;

}

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main.cpp

----------------------------

#include <iostream>

using namespace std;

#include "product.h"

int binarySearch(product arr[], int start, int end, int id)

{

if (end >= start)

{

int middle = start + (end - start)/2;

if (arr[middle].getID() == id) return middle;

if (arr[middle].getID() > id) return binarySearch(arr, start, middle-1, id);

return binarySearch(arr, middle+1, end, id);

}

return -1;

}

void getProdNum(product arr[], int start, int end){

int id;

cout<<"Enter product number: ";

cin>>id;

int index=binarySearch(arr,start,end, id);

if(index==-1){

cout<<"out of range or product found"<<endl;

}

else{

arr[index].displayProd();

}

}

int main() {

int size =5;

product p[5]={product(1,"drink","it is a fizzy drink",10.2),product(2,"bread","its a wheat bread",4.3),product(3,"soda","chill soda",3.1),product(4,"bulb","light",5),product(5,"phone","smart phone",100)};

getProdNum(p,0,size-1);

return 0;

}

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output

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