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randomname
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Posted: Thu Apr 01, 2010 3:28 pm Post subject: loop question |
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im doing this project, and basically it asks the user a few questions and then it asks them if they would like to answer the questions again, so i need somesort of loop (and an if) where when it asks yes or no -- yes starting the loop over and letting them answer the questions again and -- no basically the end of the program
i know how to do loops and if's but im not quite sure how to implement (use it) in this program. any help would be great |
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randomname
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Posted: Thu Apr 01, 2010 3:29 pm Post subject: Re: loop question |
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and oyea i forgot to add im using Dev-C++ |
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jbking
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Posted: Thu Apr 01, 2010 3:37 pm Post subject: Re: loop question |
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Do you know about Boolean variables at all? If you do, combine a Boolean variable with a while loop and an if and you should have most of the code aside from the simple I/O parts so the user knows what questions are asked and the program uses the answers that are entered. |
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randomname
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Posted: Thu Apr 01, 2010 3:55 pm Post subject: Re: loop question |
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No sorry, ive never done booleans in C++ before |
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Insectoid
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Posted: Thu Apr 01, 2010 3:56 pm Post subject: RE:loop question |
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You don't even need a boolean. I don't know jack about C++ (Except that it's a headache waiting to happen) but in most languages you can just use a 0 or 1 (or, in fact, anything other than 0) and it can be evaluated as true or false. |
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jbking
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Posted: Thu Apr 01, 2010 4:01 pm Post subject: Re: loop question |
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New Fundamanental Type - bool covers some of the basics on using this type. It isn't necessary, true, but I'd find it helpful in getting a picture of how I'd likely write it, to try to keep things in their proper place. |
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TerranceN
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Posted: Thu Apr 01, 2010 4:59 pm Post subject: RE:loop question |
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You can use a break statement to exit out of your loop (although this can make it harder to read and understand your code). Also you asked how to implement it, hope this helps:
c++: | while (1) // This will loop forever unless it reaches a break statement
{
// get input here
if (input == "no")
{
// this breaks out of the closest loop
break;
}
// if the input is not "no" then the program will loop and ask for input again
} |
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