can someone hlep me with my problem ?

clio78 (18)
i was hoping you could first run my program and have a look. It is extremely basic. i didnt know how to output the commission values in from case 3 (line 87 to 91) and output them in case 4, and i was hoping you could help me with any suggestions
Thanks
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#include <iostream>  				//the usual headers are used including string
#include <string>
#include <conio.h>

void WeeklySales(); 									//these are functions i created


main()
{
	int number; 													// declare variables
   char answer;
   double sales, sales_amount, quantity, total_sales, vat, commission;

   sales = (sales_amount * quantity);  				//initialise variables
   total_sales = (sales + vat);



   do {                   							//start of a do-while loop
   	      			//output displays the menu
   	cout << "\n\n******Sales System******";
      cout << ("\n\n");
      cout << "1. Display Company Logo.\n"; endl;
      cout << "2. Input/Validate weekly sales data.\n";endl;
      cout << "3. Calculate weekly sales.\n";endl;
      cout << "4. Display reciept.\n";endl;
      cout << "5. SHUT DOWN & LOG OFF.\n";endl;
		cout << "\nEnter a number...\n";endl;  			//prompts the user

      cin >> number;                     //input
      cout << ("\n\n");

      switch (number)  //<--the expression is a variable (number) & controls
            //the switch the value of (number) is tested against a list of
            //constants. When a match is found, the statement sequence
            //assosciated with that match is executed.
               {
      				case 1:    //<-----  const = 1

     //displays the company logo
            			cout << "\n\tUU\tUU \tEEEEEEEE \tLL\t\t \SSSSSSS\n\tUU\tU";
                     cout << "U \tEE \t\tLL\t\tS\n\tUU\tUU \tEE \t\tLL\t\tS\n\t";
                     cout << "UU\tUU \tEEEEEEE \t\LL\t\t\ SSSSSS\n\tUU\tUU \tEE";
                     cout << " \t\tLL\t\t       S\n\tUU\tUU  \tEE  \t  \t\LL  ";
                     cout << "\t\t       S \n\t UUUUUUUU   *\tEEEEEEEE  *\tLLLLL";
                     cout << "LL  *\tSSSSSSS   *\n\n\n\n\n";

   //the break statement causes program flow to exit from the entire switch statement
                     break;

            		case 2:   //<------const = 2. if match found, executes,
                           //then calls the weeklysales function below

            			cout << ("\nWeekly sales data\n\----------------- ");
                                WeeklySales();  //<-------------   function call here
                                break;

            		case 3:

            			cout << ("\nCalculate weekly sales \n\n");
                  	cout << "\n\nWould you like to calculate the weekly sales ? y/n\n";
   						cin >> answer;

        //a switch within a switch
   						switch (answer)	{
         					case 'n':       //<---if 'n' is entered the text is ouputted
               				cout << "\n\n\nThank You!\n\n";
               				break;  //<----break takes it out of the switch
            				case 'y':  //<---if 'y' then program is run below
				cout << "\n\nTOTAL SALES = sales amount * quantity\n" << endl;
				cout << "\nEnter the sales amount\n";
				cin >>  sales_amount;
				cout << "\nEnter the quantity\n" ;
				cin >>  quantity ;

				sales = (sales_amount * quantity);
				cout << "\n" << sales_amount << "  *  " << quantity << " = " << sales << "\n";
				cout << "\n" << "Sales is: \t" << sales << "\n";

   			vat = 0.175*sales;
   			total_sales = (sales + vat);
				cout << "\VAT is :\t  " << vat << "\nTOTAL SALES inc VAT is: \t" << total_sales << "\n";

				if(total_sales<=25)
					cout << " and No commission";
				else if(total_sales<=50)
					cout << "\n5% commission of total sales is " << 0.05 * total_sales << "\n\n\n";
				else if(total_sales<=75)
					cout << "\n10% commission of total sales is " << 0.10 * total_sales << "\n\n\n";
				else if(total_sales>75)
					cout << "\n20% commission of total sales is " << 0.20 * total_sales << "\n\n\n";
	}     //<-------end of the switch statement within the switch statement (nested)
                                break;
            		case 4:      //displaying the invoice

            			cout << ("\nDisplay receipt \n\n");
                     cout << "\nUELS INVOICE\n";
   						cout << "------------\n\n";
                     cout << "Sales Amount :   " << sales_amount << "\n";
                     cout << "Quantity :       " << quantity << "\n";
                     cout << "Sales :          " << sales << "\n";
                     cout << "VAT :            " << vat << "\n";
                     cout << "Total Sales :    " << total_sales << "\n";
                     cout << "Commission :     " << commission << "\n";  //<------------------i couldn't figure out how to calculate the commission
                     cout << "\n\n\n\n\n";
                     break;

            		case 5:

            			cout << ("\nGoodbye, and thank you for using U.E.L.S. \n\n");break;

         //default statement sequence is executed if no matches are found
            		default:

            			cout << ("Enter a number from 1-5 only!\n\n\n\n\n\n");

         		}
      	} while (number !=5); //program will NOT stop looping till 5 is entered
      getch();
   }



void WeeklySales() //<--------weekly sales function not part of main() function
{                  //when function is completed, goes back to case 3:
//declare variables
	int sales_code, bikeprice, model_code, quantity;
   string date;
   char answer; //either yes or no

   cout << "\n\nWould you like to input weekly sales data ? \n";
   cin >> answer;
   	switch (answer)	{
         	case 'n':       //
               cout << "\n\n\nThank You!\n\n";
               break;
            case 'y':
   do
        //the instructions to enter the i.d. code will be repeated (do...while
        //loop) as long as the sales_code is less than 1 or greater than 20.
   	{

      	cout << "\n\nPlease enter your identifiction code \n";
         cin >> sales_code;

         //the condition is tested
         if (sales_code < 1 || sales_code > 20)

         	{
            	cout << ("\nTHIS I.D. CODE IS NOT VALID. TRY AGAIN \n");
            }
      }
	//the instructions to enter the i.d. code will be repeated (do...while
   //loop) as long as the salescode is less than 1 or greater than 20.
   while (1 > sales_code || sales_code > 20);

   //another do...while loop
   do
   	{
      	cout << "\nPlease enter the bike price (one unit = 1 Euro) \n";
      	cin >> bikeprice;

         if (bikeprice < 1 || bikeprice > 500)

         	{
            	cout << ("\nINVALID PRICE. Bike prices cannot be 0 or more than 500. TRY AGAIN \n");
            }
      }

   while (bikeprice < 1 || bikeprice > 500);

   //another do...while loop
   do
   	{
      	cout << "\nPlease enter the 3 digit model code \n";
      	cin >> model_code;

         if (model_code < 0 || model_code > 999)

         	{
            	cout << ("\nINVALID MODEL CODE. TRY AGAIN \n");
            }
      }

   while (model_code < 0 || model_code > 999);

   //another do...while loop
   do
   	{
         cout << ("\nPlease enter the quantity sold \n");
      	cin >> quantity;

         if (quantity < 1 || quantity > 10)

         {
         	cout << ("\nINVALID QUANTITY. TRY A NUMBER FROM 1-10 \n");
         }
      }

   while (quantity < 1 || quantity > 10);

	do {


			cout << "\nPlease enter the date in this format dd/mm/yyyy: \n";
         cin >> date;

			cout << "\nIs this the correct date ?\t" << date << "\tpress y/n: \n\n";
         cin >> answer;   //gets answer from user

			switch (answer)	{
         	case 'y':
            	cout << "\n\n\nThank You!\n\n";
               break;
            }
         }while (answer != 'y');

    }
}
kyle11778 (192)
couldn't you make a int commission variable and use it to calculate the commission during output in case 4?
Shweta (7)
line 14 : sales = (sales_amount * quantity);
line 15: total_sales = (sales + vat);
How cm u have initialised the variables when sales_amount & others dont have any value.
First u need to initailize variable on right of equation & then assign on left

U shall take these variables as global, this could solve ur problem.
clio78 (18)
line 14 : sales = (sales_amount * quantity);
line 15: total_sales = (sales + vat);
How cm u have initialised the variables when sales_amount & others dont have any value.

they will have a value later on when values are inputted
clio78 (18)
i am using borland 5.02 so code doesnt appear to be indented when posted here.
I have tweaked my code a little now.
What do you think ?
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#include <iostream>  				//the usual headers are used including string
#include <string>
#include <conio.h>

void WeeklySales(); 									//function i created


main()
{
  int number; 													// declare variables
  char answer;
  //I have to declare ***sales_amount, quantity and vat*** here so that their SAME values can be used in BOTH case 3 AND 4
  double sales, sales_amount, quantity, total_sales, vat, comm1, comm2, comm3;

  sales = (sales_amount * quantity);  				//initialise variables
  total_sales = (sales + vat);
  comm1 = 0.05 * total_sales;
  comm2 = 0.10 * total_sales;
  comm3 = 0.20 * total_sales;

  do {                   							//start of a do-while loop
   	      			//output displays the menu
   	cout << "\n\n******Sales System******";
      cout << ("\n\n");
      cout << "1. Display Company Logo.\n"; endl;
      cout << "2. Input/Validate weekly sales data.\n";endl;
      cout << "3. Calculate weekly sales.\n";endl;
      cout << "4. Display reciept.\n";endl;
      cout << "5. SHUT DOWN & LOG OFF.\n";endl;
		cout << "\nEnter a number...\n";endl;  			//prompts the user

      cin >> number;                     //input
      cout << ("\n\n");

      switch (number)  //<--the expression is a variable (number) & controls
            //the switch the value of (number) is tested against a list of
            //constants. When a match is found, the statement sequence
            //assosciated with that match is executed.
               {     //<-----------start of the main switch
                 case 1:   
                   break;
                case 2:    
                   break;

            	  case 3:
                   cout << ("\nCalculate weekly sales \n\n");
                   cout << "\n\nWould you like to calculate the weekly sales ? y/n\n";
   					 cin >> answer;
                                       //a switch within a switch
   					 switch (answer) {
         					case 'n':       //<---if 'n' is entered the text is ouputted
               				cout << "\n\n\nThank You!\n\n";
               				break;  //<----break takes it out of the switch
                        case 'y':  //<---if 'y' then program is run below
				               cout << "\n\nTOTAL SALES = sales amount * quantity\n" << endl;
				               cout << "\nEnter the sales amount\n";
				               cin >>  sales_amount;
				               cout << "\nEnter the quantity\n" ;
				               cin >>  quantity ;

				               sales = (sales_amount * quantity);
				               cout << "\n" << sales_amount << "  *  " << quantity << " = " << sales << "\n";
				               cout << "\n" << "Sales is: \t" << sales << "\n";

   			               vat = 0.175*sales;
   			               total_sales = (sales + vat);
				               cout << "\VAT is :\t  " << vat << "\nTOTAL SALES inc VAT is: \t" << total_sales << "\n";

                           comm1 = 0.05 * total_sales;
  									comm2 = 0.10 * total_sales;
  									comm3 = 0.20 * total_sales;

				               if(total_sales<=25)
					               cout << " and No commission";
				               else if(total_sales<=50)
					               cout << "\n5% commission of total sales is " << comm1 << "\n\n\n";
				               else if(total_sales<=75)
					               cout << "\n10% commission of total sales is " << comm2 << "\n\n\n";
				               else if(total_sales>75)
					               cout << "\n20% commission of total sales is " << comm3 << "\n\n\n";
	                }     //<-------end of the switch statement within the switch statement (nested)
                           break;
            	  case 4:      //displaying the invoice
                   cout << ("\nDisplay receipt \n\n");
                   cout << "\nUELS INVOICE\n";
   					 cout << "------------\n\n";
                   cout << "Sales Amount :   " << sales_amount << "\n";
                   cout << "Quantity :       " << quantity << "\n";
                   cout << "Sales :          " << sales << "\n";
                   cout << "VAT :            " << vat << "\n";
                   cout << "Total Sales :    " << total_sales << "\n";
                   if(total_sales<=25)
					               cout << "No commission\n";
                   else if(total_sales<=50)
					               cout << "5% commission : " << comm1 << "\n\n\n\n";
                   else if(total_sales<=75)
					               cout << "10% commission : " << comm2 << "\n\n\n\n";
                   else if(total_sales>75)
					               cout << "20% commission : " << comm3 << "\n\n\n\n";
                   break;

            	  case 5:
                   cout << ("\nGoodbye, and thank you for using U.E.L.S. \n\n");break;
                            //default statement sequence is executed if no matches are found
            	  default:
                   cout << ("Enter a number from 1-5 only!\n\n\n\n\n\n");
               }    // <-----end of the main switch
     } while (number !=5); //<--end of do while loop. (program will NOT stop looping till 5 is entered)

  getch();

} // <---------end of main
clio78 (18)
i had to remove option 1 and 2 because only 8192 characters are allowed.
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