In C programming, what is the sintax so that once I press a char or a int a certain task will execute?

just like in a ATM machine if you press a number it will automatically execute that certain function can you hve an example program pls.

In C programming, what is the sintax so that once I press a char or a int a certain task will execute?
let char be an a-%26gt;





char a;


cout%26lt;%26lt;"what you want to perform";


cin%26gt;%26gt;a;


switch (a)


{


case '1':


do your work;


break;


case '2':


do your work;


break;


case '3':


do your work;


break;


}
Reply:/*


You emphesized on Pressing a key and execution of a task


so my answer is same like Usman but with slight modification, which is following


*/





#include %26lt;iostream.h%26gt;


#include %26lt;conio.h%26gt;


void main()


{


char a;


cout%26lt;%26lt;"what you want to perform";


a = getch();





switch (a)


{


case '1':


do your work;


break;





case '2':


do your work;


break;





case '3':


do your work;


break;


}


}
Reply:This depends on which key you want people to press...





If you just want a letter or number to be pressed, then you can use the getch() function.





char ch;


ch=getch();


switch (ch) {


case '1' : /* option 1 was pressed */


perform_option_1();


break


default: invalid_option();


break


}





If you want the user to press one of the non-ascii keys (F1, F2, Esc, PageUp, etc...) then you should use bioskey(), although this needs a little more setting up. I have created a program that uses 'bioskey', and the header file is all done for you, with values for almost any keypress. I've just uploaded to http://cid-7797c171df1b800d.skydrive.liv...


Feel free to download a copy. It comes with an example program to show you how it works.

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