Question

In Chapter 5, you wrote a HomeSales application for three salespeople: Danielle, Edward, and Francis.

Now, using the code you wrote in Chapter 5, Programming Exercise 5, modify the program to use arrays to store the salesperson names, allowed initials, and accumulated sales values.

In order to prepend the $ to currency values, the program will need to use the CultureInfo.GetCultureInfo method. In order to do this, include the statement using System.Globalization; at the top of your program and format the output statements as follows: WriteLine("This is an example: {0}", value.ToString("C", CultureInfo.GetCultureInfo("en-US")));

Tasks:

Use arrays for store salesperson names, initials, and accumulated sales values:

Array of type double declared to store accumulated sales values

1. Searched your code for a specific pattern: double\s*\[\]

Array of type char declared to store allowed initials

1. Searched your code for a specific pattern: char\s*\[\]

Array of type string declared to store salesperson names

1. Searched your code for a specific pattern: string\s*\[\]

The program's main functionality remains unchanged from Chapter 5, Programming Exercise 5.

1. Successful Output 1

Expected Output

50.00 25.00 60.00 135.00

2. Successful Output 2

Expected Output

90.00 10.00 50.00 150.00

3. Program accepts both upper and lower case value for a salesperson's initial

Expected Output

Danielle\ssold\s*\$15\.00

Edward\ssold\s*\$0\.00

Francis\ssold\s*\$0\.00

4. The program displays an error message for invalid initials

Sorry - invalid salesperson

Here is the code submitted in the previous assignment that it wants main functionality to not change:

using System;

using static System.Console;

using System.Globalization;

class HomeSales

{

   static void Main()

   {

    // Write your main here.

    string initial = "";

    int dsale = 0;

    int esale = 0;

    int fsale = 0;

    int total = 0;

    while(initial != "z")

    {

      Write("Enter a sales person initial: ");

      initial = ReadLine().ToLower();

      if(initial == "d" || initial == "e" || initial == "f")

      {

        Write("Enter amount of sale: ");

        int amount = Convert.ToInt32(ReadLine());

        if(initial =="d")

        dsale += amount;

        else if(initial =="e")

        esale += amount;

        else if(initial == "f")

        fsale += amount;

      }

      else {

        if(initial != "z")

        {

          WriteLine("Sorry - invalid salesperson");

        }

      }

     }

     total = dsale + esale + fsale;

     WriteLine("Danielle sold {0}", dsale.ToString("C",CultureInfo.GetCultureInfo("en-US")));

     WriteLine("Edward sold {0}", esale.ToString("C",CultureInfo.GetCultureInfo("en-US")));

     WriteLine("Francis sold {0}", fsale.ToString("C",CultureInfo.GetCultureInfo("en-US")));

     WriteLine("Total sales were {0}", total.ToString("C",CultureInfo.GetCultureInfo("en-US")));

     if(dsale > esale && dsale > fsale)

     {

       WriteLine("Danielle sold the most");

     }

     else if(esale > dsale && esale > fsale)

     {

       WriteLine("Edward sold the most");

     }

     else if(fsale > dsale && fsale > esale)

     {

       WriteLine("Francis sold the most");

     }

     else

     {

       WriteLine("There was a tie");

     }

    }

}

Answer 1

// C# program to create an application for Home sales

using System;
using static System.Console;
using System.Globalization;

class HomeSales
{
   static void Main()
   {

       // Write your main here.
       // convert initial to char from string
       char initial = ' ';
       // create arrays of size 3
       // create an array to store the initials
       char[] initials = new char[3];
       // create an array to store the sales
       double[] sales = new double[3];
       // create an array to store the names
       string[] names = new string[3];
      
       // initialize all sales to 0
       for(int i=0;i<sales.Length;i++)
           sales[i] = 0;
      
       // set the initials and names of the 3 salesperson
       initials[0] = 'd';
       initials[1] = 'e';
       initials[2] = 'f';

       names[0] = "Danielle";
       names[1] = "Edward";
       names[2] = "Francis";
      
      
       double total = 0; // set total to 0
      
       int index;
       // loop that continues until the input initial is z
       while(initial != 'z')
       {
           // input the initial
           Write("Enter a sales person initial: ");
           initial = ReadLine().ToLower()[0];

           // loop to get the index of the salesperson with the given initial
           for(index=0;index<initials.Length;index++)
           {
               if(initials[index] == initial)
               {
                   break;
               }
           }
          
           // if initial is found
           if(index != initials.Length)
           {
               // input the sales amount and add it to the sales of the salesperson at index
               Write("Enter amount of sale: ");
               double amount = Convert.ToDouble(ReadLine());
               sales[index] += amount;
           }
           else {
               // initial not found, check if user wants to exit  
               if(initial != 'z')
               {
                   // if user doesn't want to exit, display error message
                   WriteLine("Sorry - invalid salesperson");

               }
           }
       }
         
       // loop to calculate the total sales and display the sales of each salesperson
       for(index = 0;index < sales.Length; index++)
       {  
           total += sales[index];
           WriteLine("{0} sold {1}", names[index], sales[index].ToString("C",CultureInfo.GetCultureInfo("en-US")));
       }  
          
       // display the total sales
       WriteLine("Total sales were {0}", total.ToString("C",CultureInfo.GetCultureInfo("en-US")));
      
       // determine which salesperson sold the most
       if(sales[0] > sales[1] && sales[0] > sales[2])
       {
           WriteLine("{0} sold the most",names[0]);
       }
       else if(sales[1] > sales[0] && sales[1] > sales[2])
       {
           WriteLine("{0} sold the most",names[1]);
       }
       else if(sales[2] > sales[0] && sales[2] > sales[1])
       {
           WriteLine("{0} sold the most",names[2]);
       }
       else
       {
           WriteLine("There was a tie");
       }
}
}

//end of program