C++ RSS C++ RSS

If....else password statement

Please support our C++ advertiser: Intel Parallel Studio Home
Reply

•
•
Join Date: Nov 2004
Posts: 24
Reputation: Marauder is an unknown quantity at this point 
Solved Threads: 0
Marauder's Avatar
Marauder Marauder is offline Offline
Newbie Poster

If....else password statement

 
0
  #1
Dec 6th, 2004
I am having a little trouble incorporating a simple password into a voting machine style program. If anybody can see what's wrong with it and point it out, I would be very grateful.

C++ Syntax (Toggle Plain Text) 
  1. #include <iostream>
  2. #include <iomanip>
  3. #include<string>
  4. #include<cstdlib>
  5.  
  6. using namespace std;
  7.  
  8. int main()
  9. {
  10.    char choice;
  11.    string password = "jim";
  12.    string guess = "";
  13.  
  14. do
  15.    {
  16.       system("color F0");
  17.       system("CLS");
  18.       cout << "\n\n\n\n";
  19.  
  20.  
  21.       cout << setw(50) << "Voting Menu";
  22.       cout << endl << setw(40) << " George W. Bush" << ": 1 " ;
  23.       cout << endl << setw(40) << " John F. Kerry" << ": 2 ";
  24.       cout << endl << setw(40) << "  EXIT" << ": 3 " << endl;
  25.       cout << endl << endl << setw(40) << "Please enter your choice :";
  26.       cin >> choice;
  27.       cin.get();
  28.  
  29.       switch( choice)
  30.       {
  31.          case '1': system("CLS");
  32.                    cout << "\n\n\n\n";
  33.                    cout << setw(50) << "Thank you for voting. " << endl;
  34.                    cin.get();
  35.                    break;
  36.  
  37.          case '2': system("CLS");
  38.                    cout << "\n\n\n\n";
  39.                    cout << setw(50) <<"Thank you for voting" << endl;
  40.                    cin.get();
  41.                    break;
  42.  
  43.          case '3': system("CLS");
  44.                    cout << "\n\n\n\n";
  45.                    cout << setw(50) <<"Please enter supervisors password :" ;
  46.                    cin >> guess;
  47.  
  48.  
  49.          if(guess == password)
  50.          {
  51.  
  52.              cout << endl << endl << endl << setw(10) << ""
  53.            << "Are you sure you want to quit and start counting votes? <Y/N> " << endl;
  54.  
  55.  
  56.        }    
  57.  
  58.  
  59.               else 
  60.            {
  61.                cin.get();
  62.            }            
  63.  
  64.        case '4': break;
  65.  
  66. }                     
  67.  
  68.  
  69.    }while( choice != '4');
  70.  
  71.    return 0;
  72. }

See after if(guess == password), it must revert back to the original screen if the password is incorrect. If the password is correct it will continue onto a Y/N option.

There's much more to do but I should be able to complete those parts on my own...hopefully.
BTW, is there a tutorial that explains simple Y/N parts?
Reply With Quote Quick reply to this message  
•
•
Join Date: Aug 2004
Posts: 41
Reputation: varunrathi is an unknown quantity at this point 
Solved Threads: 1
varunrathi's Avatar
varunrathi varunrathi is offline Offline
Light Poster

Re: If....else password statement

 
0
  #2
Dec 7th, 2004
u have given a case `4`: but u haven`t displayed it on the menu.
u must go on calculating while the voting is going on
e.g; if the
case is `1` then gw++
where gw is a counter for George Bush

similaraly for case `2` keep a separate conter.

when u r asking the user to count the votes
i.e; cout << endl << endl << endl << setw(10) << ""
<< "Are you sure you want to quit and start counting votes? <Y/N> " << endl;

then take the user`s choice as input
e.g; cin>>ans;

now check if(ans==`y` or ans == `Y`)
{then simply display the results
i.e; cout<<gw; and the other one
and then come out of the loop by using : break;
}
Reply With Quote Quick reply to this message  
•
•
Join Date: Dec 2004
Posts: 12
Reputation: nvanevski is an unknown quantity at this point 
Solved Threads: 1
nvanevski nvanevski is offline Offline
Newbie Poster

Re: If....else password statement

 
0
  #3
Dec 8th, 2004
Besides, you do not have a break statement for case 3. You need to put break statements for each case.
Reply With Quote Quick reply to this message  
•
•
Join Date: Dec 2004
Posts: 24
Reputation: yb1pls is an unknown quantity at this point 
Solved Threads: 1
yb1pls yb1pls is offline Offline
Newbie Poster

Re: If....else password statement

 
-1
  #4
Dec 8th, 2004
#include <iostream>
#include <iomanip>
#include<string>
#include<cstdlib>

using namespace std;

int main()
{
char choice;
string password = "jim";
string guess = "";

do
{
system("color F0");
system("CLS");
cout << "\n\n\n\n";


cout << setw(50) << "Voting Menu";
cout << endl << setw(40) << " George W. Bush" << ": 1 " ;
cout << endl << setw(40) << " John F. Kerry" << ": 2 ";
cout << endl << setw(40) << " EXIT" << ": 3 " << endl;
cout << endl << endl << setw(40) << "Please enter your choice :";
cin >> choice;
cin.get();

switch( choice)
{
case '1': system("CLS");
cout << "\n\n\n\n";
cout << setw(50) << "Thank you for voting. " << endl;
cin.get();
break;

case '2': system("CLS");
cout << "\n\n\n\n";
cout << setw(50) <<"Thank you for voting" << endl;
cin.get();
break;

case '3': system("CLS");
cout << "\n\n\n\n";
cout << setw(50) <<"Please enter supervisors password :" ;
cin >> guess;


if(guess == password)
{

cout << endl << endl << endl << setw(10) << ""
<< "Are you sure you want to quit and start counting votes? <Y/N> " << endl;


}


else
{
cin.get();
}

case '4': break;

}


}while( choice != '3');

return 0;
}

email me if you have any problems on yb1pls@yahoo.co.uk
Reply With Quote Quick reply to this message  
•
•
Join Date: Sep 2004
Posts: 220
Reputation: frrossk is an unknown quantity at this point 
Solved Threads: 9
frrossk's Avatar
frrossk frrossk is offline Offline
Posting Whiz in Training

Re: If....else password statement

 
0
  #5
Dec 8th, 2004
To yb1pls: Use code tags when you are posting some code - http://www.daniweb.com/techtalkforum...nouncementid=3
Reply With Quote Quick reply to this message  
•
•
Join Date: Nov 2004
Posts: 24
Reputation: Marauder is an unknown quantity at this point 
Solved Threads: 0
Marauder's Avatar
Marauder Marauder is offline Offline
Newbie Poster

Re: If....else password statement

 
0
  #6
Dec 8th, 2004
This is a little update... Thanks for the replies guys.

C++ Syntax (Toggle Plain Text) 
  1. #include <iostream>
  2. #include <iomanip>
  3. #include<string>
  4. #include<cstdlib>
  5.  
  6. using namespace std;
  7.  
  8. int main()
  9. {
  10.    char choice;
  11.    string correctpassword = "jim";
  12.    string password = "";
  13.    char ans;
  14.    int gwb = 0;
  15.    int jfk = 0;
  16.  
  17. do
  18.    {
  19.       system("color F0");
  20.       system("CLS");
  21.       cout << "\n\n\n\n";
  22.  
  23.  
  24.       cout << setw(50) << "Voting Menu";
  25.       cout << endl << setw(40) << " George W. Bush" << ": 1 " ;
  26.       cout << endl << setw(40) << " John F. Kerry" << ": 2 ";
  27.       cout << endl << setw(40) << "  EXIT" << ": 3 " << endl;
  28.       cout << endl << endl << setw(40) << "Please enter your choice :";
  29.       cin >> choice;
  30.       cin.get();
  31.  
  32.       switch( choice)
  33.       {
  34.          case '1': system("CLS");
  35.                    cout << "\n\n\n\n";
  36.                    cout << setw(50) << "Thank you for voting. " << endl;
  37.                    cin.get();
  38.                    break;
  39.  
  40.                    cout << setw(30) <<"Please enter supervisors password to enable next voter:" ;
  41.                    getline(cin, password);
  42.  
  43.  
  44.  
  45.  
  46.          case '2': system("CLS");
  47.                    cout << "\n\n\n\n";
  48.                    cout << setw(50) <<"Thank you for voting" << endl;
  49.                    cin.get();
  50.                    break;
  51.  
  52.                     if(choice == 1)
  53.                                {
  54.                                  gwb = gwb + 1;
  55.                                  }
  56.                             else if(choice == 2)
  57.                             {
  58.                               jfk = jfk + 1;
  59.                               }
  60.  
  61.  
  62.          case '3': system("CLS");
  63.                    cout << "\n\n\n\n";
  64.                    cout << setw(50) <<"Please enter supervisors password :" ;
  65.                    getline(cin, password);
  66.  
  67.  
  68.          if(password != correctpassword)
  69.          {
  70.                cout << "\n\n\n\n";
  71.                cout << setw(50) <<"Please enter supervisors password :" ;
  72.                getline(cin, password);
  73.  
  74.          }
  75.  
  76.          else 
  77.            {
  78.                cout << endl << endl << endl << setw(10) << ""
  79.            << "Are you sure you want to quit and start counting votes? <Y/N> " << endl;
  80.            cin >> ans; 
  81.  
  82.  
  83.             cout << setw(30) << "Totals for this election. ";
  84.             cout << endl << setw(40) << " George W. Bush: " << "\n\n\n" << gwb ;
  85.             cout << endl << setw(40) << " John F. Kerry: " << "\n\n\n" << jfk ;
  86.                   }           
  87.  
  88.        break;      
  89.      }                  
  90.  
  91.  
  92. }while( choice != '4');
  93.  
  94.  
  95. cin.get();
  96. return 0;
  97. }

What I don't know how to do is the little (Yes/No) feature. I googled it but no luck. Does is work like my password?

Marauder,
Reply With Quote Quick reply to this message  
•
•
Join Date: Apr 2004
Posts: 4,346
Reputation: Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future 
Solved Threads: 237
Team Colleague
Dave Sinkula's Avatar
Dave Sinkula Dave Sinkula is offline Offline
long time no c

Re: If....else password statement

 
0
  #7
Dec 8th, 2004
Did you know you have unreachable code?
      switch ( choice )
      {
      case '1': system("CLS");
         cout << "\n\n\n\n";
         cout << setw(50) << "Thank you for voting. " << endl;
         cin.get();
         break;

         cout << setw(30) <<"Please enter supervisors password to enable next voter:" ;
         getline(cin, password);

      case '2': system("CLS");
         cout << "\n\n\n\n";
         cout << setw(50) <<"Thank you for voting" << endl;
         cin.get();
         break;

         if ( choice == 1 )
         {
            gwb = gwb + 1;
         }
         else if ( choice == 2 )
         {
            jfk = jfk + 1;
         }
Reply With Quote Quick reply to this message  
•
•
Join Date: Dec 2004
Posts: 445
Reputation: 1o0oBhP is an unknown quantity at this point 
Solved Threads: 6
1o0oBhP's Avatar
1o0oBhP 1o0oBhP is offline Offline
Posting Pro in Training

Re: If....else password statement

 
0
  #8
Dec 14th, 2004
Incorporating the vote counting into the switch statement will solve one of the unreachable segments

#include <iostream>
#include <iomanip>
#include<string>
#include<cstdlib>

using namespace std;

int main()
{
   char choice;
   string correctpassword = "jim";
   string password = "";
   char ans;
   int gwb = 0;
   int jfk = 0;
   
do
   {
      system("color F0");
      system("CLS");
      cout << "\n\n\n\n";


      cout << setw(50) << "Voting Menu";
      cout << endl << setw(40) << " George W. Bush" << ": 1 " ;
      cout << endl << setw(40) << " John F. Kerry" << ": 2 ";
      cout << endl << setw(40) << "  EXIT" << ": 3 " << endl;
      cout << endl << endl << setw(40) << "Please enter your choice :";
      cin >> choice;
      cin.get();

      switch( choice)
      {
         case '1': system("CLS");
                   gwb++;
                   cout << "\n\n\n\n";
                   cout << setw(50) << "Thank you for voting. " << endl;
                   cin.get();
                   break;
                                                     
         case '2': system("CLS");
                   jfk++;
                   cout << "\n\n\n\n";
                   cout << setw(50) <<"Thank you for voting" << endl;
                   cin.get();
                   break;
                    
/* Should this not be after the switch so that you are asked AFTER the program has analyzed the choice?

                cout << setw(30) <<"Please enter supervisors password to enable next voter:" ;
                   getline(cin, password);
                   
*/
         case '3': system("CLS");
                   cout << "\n\n\n\n";
                   cout << setw(50) <<"Please enter supervisors password :" ;
                   getline(cin, password);
         
                   
         if(password != correctpassword)
         {
               cout << "\n\n\n\n";
               cout << setw(50) <<"Please enter supervisors password :" ;
               getline(cin, password);
              
         }
           
         else 
           {
               cout << endl << endl << endl << setw(10) << ""
           << "Are you sure you want to quit and start counting votes? <Y/N> " << endl;
           cin >> ans; 
           
      
            cout << setw(30) << "Totals for this election. ";
            cout << endl << setw(40) << " George W. Bush: " << "\n\n\n" << gwb ;
            cout << endl << setw(40) << " John F. Kerry: " << "\n\n\n" << jfk ;
                  }           
       
       break;      
     }                  
   
   
}while( choice != '4');


cin.get();
return 0;
}
http://sales.carina-e.com

no www
no nonsense

coming soon to a pc near you! :cool:
Reply With Quote Quick reply to this message  
•
•
Join Date: Dec 2004
Posts: 445
Reputation: 1o0oBhP is an unknown quantity at this point 
Solved Threads: 6
1o0oBhP's Avatar
1o0oBhP 1o0oBhP is offline Offline
Posting Pro in Training

Re: If....else password statement

 
0
  #9
Dec 14th, 2004
btw cant you use another mini switch block for the Y/N problem????

ie, get the string (answer) and try something like the following...

C++ Syntax (Toggle Plain Text) 
  1. switch (answer)
  2. {
  3.     case 'y':
  4.     case 'Y':
  5.     {
  6.         // User says yes, do something
  7.     }
  8.     break;
  9.  
  10.     case 'n':
  11.     case 'N':
  12.     {
  13.         // User said no, do something else
  14.     }
  15.     break; 
  16.     default:
  17.     {
  18.         // didnt understand / error
  19.     }
  20.     break;
  21. }

this could probably be #define'd or put in a function so that it tidies up the code a bit

hope this helps..
Last edited by 1o0oBhP; Dec 14th, 2004 at 2:05 am. Reason: addition
http://sales.carina-e.com

no www
no nonsense

coming soon to a pc near you! :cool:
Reply With Quote Quick reply to this message  
•
•
Join Date: Oct 2004
Posts: 4,009
Reputation: vegaseat is just really nice vegaseat is just really nice vegaseat is just really nice vegaseat is just really nice vegaseat is just really nice 
Solved Threads: 928
Moderator
vegaseat's Avatar
vegaseat vegaseat is offline Offline
DaniWeb's Hypocrite

Re: If....else password statement

 
0
  #10
Dec 14th, 2004
•
•
•
•
Originally Posted by nvanevski
Besides, you do not have a break statement for case 3. You need to put break statements for each case.
Funny way to do it, but case 4 provides the break for case 3
May 'the Google' be with you!
Reply With Quote Quick reply to this message  
Reply

Quick Reply to Thread
This thread is more than three months old.
Perhaps start a new thread instead?
•
•
•
•
•
•
•
•
Message:
•
•
•
•



Similar Threads
Other Threads in the C++ Forum
Thread Tools Search this Thread



api array based beginner binary bitmap c++ c/c++ calculator char char* class code coding compile compiler console conversion count data database delete deploy developer dll download dynamic dynamiccharacterarray email encryption error file forms fstream function functions game getline givemetehcodez graph gui homeworkhelp homeworkhelper iamthwee ifstream input int integer java lib linker list loop looping loops map math matrix memory multiple news node number numbertoword output parameter pointer problem program programming project proxy python random read recursion recursive reference rpg sorting string strings struct temperature template text text-file tree url variable vector video visual visualstudio win32 windows winsock word wordfrequency wxwidgets
About Us | Contact Us | Advertise | DaniWeb | Acceptable Use Policy | RSS Feed

©2003 - 2009 DaniWeb® LLC