Thread: Need Help... why do some programs close suddenly after entering character ?

I try to learn C programming but I have a question about it.

Can you explain why do some programs close after entering number or characters suddenly altough I use conio.h and getch();. For example, I wrote some codes to develop my programming skills. after compiling with Dev C++, my program start but after writing a number between 0-8 it close suddenly.Why? Have I made any mistakes while I was writing codes? but I faced some problems like this when I compiled other codes. What is the general problems?

Code:

#include<stdio.h>
#include<conio.h>
main()
{
int sayi;
printf("Please write a number:\n");
scanf("%d",&sayi);
switch(sayi){
case 1: printf("Monday\n");
break;
case 2: printf("Tuesday\n");
break;
case 3: printf("Wednesday\n");
break;
case 4: printf("Thursday\n");
break;
case 5: printf("Friday\n");
break;
case 6: printf("Saturday\n");
break;
case 7: printf("Sunday\n");
break;
default: printf("No day\n"); 
getch();
}
}

your getch() call is inside your default case. It doesn't get executed for numbers one through 7. Also, if you want it to repeat, you are going to have to include a while loop over the switch statement, something like:

while (sayi)
{
....
}

Dont forget to put code tags as well !!!!! It makes reading a lot easier and clean as well.

Thank you roaan, LBriggs, Spidey I solve problems

KBriggs

How Can I use While Loop in my codes? Can you explain?