date validation

I am in the middle of a program.
It is unfinished.
However i would like to validate the date.
I am stuck.
Please could you take 5 mins to look at this.

Here is the original program into which i want to add the date validation body to.
Please go ahead and run it.
I have completed option 1, and I am in the middle of completing option 2. Option 3 and 4 have not been attempted yet.

ORIGINAL PROGRAM

Code:

---

#include <iostream.h>

#include <conio.h>

void WeeklySales(); //we make weeklysales a function here too

main()
        {
          int number;

      do
              {      //displays the menu
                cout << "******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 number...\n";endl;
                cin >> number;
            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

                                    cout << ("\n\tUU\tUU \tEEEEEEEE \tLL\t\t \SSSSSSS\n\tUU\tUU \tEE \t\tLL\t\tS\n\tUU\tUU \tEE \t\tLL\t\tS\n\tUU\tUU \tEEEEEEE \t\LL\t\t\ SSSSSS\n\tUU\tUU \tEE \t\tLL\t\t      S\n\tUU\tUU  \tEE  \t  \t\LL  \t\t      S \n\t UUUUUUUU  *\tEEEEEEEE  *\tLLLLLLL  *\tSSSSSSS  *\n\n\n\n\n");break;

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

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

                            case 3:

                                    cout << ("Calculate weekly sales "); break;

                            case 4:

                                    cout << ("Display receipt "); break;

                            case 5:

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

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

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

                        }
              } 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 salescode, bikeprice, modelcode, quantity, date;

  do
        //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.
          {

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

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

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

        if (modelcode < 0 || modelcode > 999)

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

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

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

        if (quantity < 1 || quantity > 10)

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

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



  //BELOW IS WHERE I WOULD HAVE TO PUT THE DATE VALIDATION PROGRAM IN ??? Would it be another do...while loop ?

              cout << "\nPlease enter the date ";
              cin >> date;

                cout << ("\n\n\n\n\n\n");
}

---

as you can see, when an integer is entered for the date, the program will loop.

i tried to make another program with intentions of incorporating it into the original.
Would i put this next bit of code after line 131 ?
here it is: PROGRAM 2

Code:

---

#include <iostream.h>

#include <conio.h>

main()

{

                int date;

      char yes, no;

      yes = 'y';

      no = 'n';

      do {

                                    cout << "\nPlease enter the date. eg. 020410 is 02/04/10 ";

              cin >> date;

              cout << "\nIs the the correct date ? press y/n \n" << date;

              cin >> yes || no;  //<------ i wasnt sure if this was correct

              if (char == no )

                              {

                        cout << ("\nPlease re-enter the correct date \n");
                        cin >> date;
                    }

          } while (char == yes); //<-----here i would like it to go back to the menu screen

          getch();

          }

---

there are errors, what have i done wrong ? how would i incorporate this into the original ?

can you help ?

O_o

Could you not find your other posts or were you just confused by this also being a C++ forum?

Soma