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.
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.)

Language: C++

Answer 1

C++ CODE:

#include <bits/stdc++.h>

using namespace std;

// Declare all constant variables

const int MIN = 515;// maximam range

const int MAX = 525; // minimum range

const int PRODS = 10; // number of items

const int TITLE_SIZE = 50; // number of titles

const int DESC_SIZE = 12;

//Function prototype

int getProdNum();

int binarySearch(int [],int,int);

void displayProd(char [][TITLE_SIZE],char [][DESC_SIZE],double [],int);

// The main function

int main()

{

    // productNumber

    int id[PRODS] = {515,516,517,518,519,520,521,522,523,524};

    // product title names

    char title[PRODS][TITLE_SIZE] ={ "REI",

                                         "APPPLE",

                                         "J.C.PAM",

                                         "Toys'R'",

                                         "Musician Friend",

                                         "Marks and Spencer",

                                         "Victoria's Secret",

                                         "Electro",

                                         "Etsy"};

    // product description

    char description[PRODS][DESC_SIZE] = {"ab","TR","abcd",

                                              "abcd","Gk","KY",

                                              "Rk","Bk","LN"};

    // product prices

    double prices[PRODS] = {25.50, 50.25, 70.00,18.50,

                                 45.50,78.52, 79.50,47.50,63.50};

        

    

    // initialize a variable                       

    int prodNum;

    int idx;

    char choice;

    // show the menu

  

    do{

        prodNum = getProdNum();

        idx = binarySearch(id, PRODS, prodNum);

        // if product number not found.

        if(idx == -1){

            cout<<"That product number was not found.\n";

        }else{

            // if product number is found.

            displayProd(title,description,prices,idx);

        }

        // ask for choice again

        cout<<"Would you like to loop up another product? ( y / n ): ";

        cin>>choice;

    }while(choice == 'y' || choice == 'Y');                         

   cout<<"\n\n";

    return 0;

}

// Declare getProdNum function

int getProdNum(){

    int prodNum;

   // ask for input product number

    cout<<"\nPlease enter a product number: ";

    cin>> prodNum;

    // check input product is valid or not

    while (prodNum < MIN || prodNum > MAX)

    {

        cout<<"Enter a number in the range of "<<MIN<<" to "<<MAX<<".\n";

        cin>>prodNum;

    }

    // return prodNum

    return prodNum;

    

}

// Declare binarySearch function

int binarySearch(int arr[], int size, int search)

{

    int first =0,

    last = size-1,

    middle =-1,

    idx;

    bool flag =false;

    // find the middle value

    middle = (first+last)/2;

    // find the product number

    while (first <= last)

    {

       if(arr[middle] < search)

       {

        first = middle + 1;

       }

       else if(arr[middle] == search)

       {

           flag =true;

           idx =middle;

           break;

       }

       else {

            last = middle - 1;

       }

     middle = (first + last)/2;

    }

    // return product number location

   return idx;

}

// Declare displayProd function

void displayProd(char title[][TITLE_SIZE],char desc[][DESC_SIZE],double price[],int idx)

{

    // display the Title,Description and Price.

    cout<<"Title: "<<title[idx]<<endl;

    cout<<"Description: "<<desc[idx]<<endl;

    cout<<"Price: $"<<price[idx]<<endl;

}

OUTPUT: