Loops

[stella]

Hello...I am working on a program using a while loop. I have set up my program
like a multiple choice question with one of the choices being X if I want
to exit my program. When I select X as my answer to exit the program ...the
program continues to run and will not exit...I have to select alt,control,delete
to get it to stop running.

while (letter == 'X')
{cout << "Exit program" << endl;

I realize this is a simple question, but I can't remember how to right the
while statement to exit the program when the letter 'X' is typed in.
Also, is X a float?

[jonnin]

what you want is

int main()
{
char letter = 0;
while(letter != 'x')
{
do stuff, including reading x, etc.
}

return(3.14) //can't resist this stuff for fun ;)
}

it will quit if letter is x and continue if not...
also, exit(0) will kill a program whenever that is called, it that is
useful to you.





"stella" <stellac2002@yahoo.com> wrote:
>
>Hello...I am working on a program using a while loop. I have set up my
program
>like a multiple choice question with one of the choices being X if I want
>to exit my program. When I select X as my answer to exit the program ...the
>program continues to run and will not exit...I have to select alt,control,delete
>to get it to stop running.
>
>while (letter == 'X')
>{cout << "Exit program" << endl;
>
>I realize this is a simple question, but I can't remember how to right the
>while statement to exit the program when the letter 'X' is typed in.
>Also, is X a float?

[stella]

"jonnin" <jonnin@vol.com> wrote:
>
>what you want is
>
>int main()
>{
>char letter = 0;
>while(letter != 'x')
> {
> do stuff, including reading x, etc.
> }
>
>return(3.14) //can't resist this stuff for fun ;)
>}
>
>it will quit if letter is x and continue if not...
>also, exit(0) will kill a program whenever that is called, it that is
>useful to you.
>
>
>
>
>
>"stella" <stellac2002@yahoo.com> wrote:
>>
>>Hello...I am working on a program using a while loop. I have set up my
>program
>>like a multiple choice question with one of the choices being X if I want
>>to exit my program. When I select X as my answer to exit the program ...the
>>program continues to run and will not exit...I have to select alt,control,delete
>>to get it to stop running.
>>
>>while (letter == 'X')
>>{cout << "Exit program" << endl;
>>
>>I realize this is a simple question, but I can't remember how to right
the
>>while statement to exit the program when the letter 'X' is typed in.
>>Also, is X a float?
>

[Victor A. Wagner Jr.]

"jonnin" <jonnin@vol.com> wrote:
>
>what you want is
>
>int main()
>{
>char letter = 0;
>while(letter != 'x')
> {
> do stuff, including reading x, etc.
> }
>
>return(3.14) //can't resist this stuff for fun ;)

if your compiler accepts it, it is broken.
main returns an int, not a double.
[deleted]

[stella]

I tried that and it still want let me exit the program when I type in the
letter X.. The program continues to run...run...run...
char letter=0; is at the beginning of my program and the while (letter !=
X) is at the end of my program...could that be the problem?
Thanks




Victor A. Wagner Jr." <vwagner@seisint.com> wrote:
>
>"jonnin" <jonnin@vol.com> wrote:
>>
>>what you want is
>>
>>int main()
>>{
>>char letter = 0;
>>while(letter != 'x')
>> {
>> do stuff, including reading x, etc.
>> }
>>
>>return(3.14) //can't resist this stuff for fun ;)
>
>if your compiler accepts it, it is broken.
>main returns an int, not a double.
>[deleted]

[Mark Sc.]

"stella" <stellac2002@yahoo.com> wrote:
>
>I tried that and it still want let me exit the program when I type in the
>letter X.. The program continues to run...run...run...
>char letter=0; is at the beginning of my program and the while (letter
!=
>X) is at the end of my program...could that be the problem?
>Thanks
>
>
>
>
>Victor A. Wagner Jr." <vwagner@seisint.com> wrote:
>>
>>"jonnin" <jonnin@vol.com> wrote:
>>>
>>>what you want is
>>>
>>>int main()
>>>{
>>>char letter = 0;
>>>while(letter != 'x')
>>> {
>>> do stuff, including reading x, etc.
>>> }
>>>
>>>return(3.14) //can't resist this stuff for fun ;)
>>
>>if your compiler accepts it, it is broken.
>>main returns an int, not a double.
>>[deleted]
>

X or x makes a big difference, you have to check for 'x' e.g.
while ( letter != 'x' ) {
//do whatever
}