Strings
A string is a one-dimensional array of type char. All strings must end with a
null character \0 which is a byte used to represent the end of a string.
A character in a string can be accessed either by an element in an array of by making use of a pointer.
Example 1: Strings in practice
char *first = "john";
char last[6];
last[0] = 's';
last[1] = 'm';
last[2] = 'i';
last[3] = 't';
last[4] = 'h';
last[5] = '\0';
printf("Name: %s, len: %lu", first, strlen(first));