printf outputting garbage instead of specific characters

Question

Well I\'ve weird problem with printf(). It\'s outputting garbage on screen. It\'s kind of connected with memory I guess. Have a look:

char strin         


        

Answer 1

finish your string2 with null character '\0'

string2[19] = '\0';

Or you can do it in this way:

for (i; i < 19; i++) string2[i] = ' ';
string2[i] = '\0'; // after the end of the loop i= 19 here

Answer 2

Because C strings need to be NUL terminated. This means the last char of your string must be '\0'. This is how printf (and all other C string functions) know when a string is finished.