1. Character Arrays char string1[] = “first”;
Note : string1 contains 5 characters plus a string termination character or null character – ‘\0’.
char string1[] = { ‘f ‘ , ‘i ‘, ‘r ‘ , ‘s ‘ , ‘t ‘ , ‘ \0 ‘};
A String is an array of characters.
A character array representing a string can be displayed with %s.
printf(“%s \n”, string1);
gets(string1);
fflush(stdin);

2. #include < stdio.h>
int main() {
char string1[20], string2[] = “abcd”;
int i;
printf(“Enter a string \n”);
scanf(“%s”, string1);
printf(“ String1 is : %s \n”, string1);
printf(“ String2 is : %s \n”, string2);
for( i = 0; string1[ i ] != ‘\0’ ; i++)
printf(“ %c ”, string1[i]);
printf(“\n”);
return 0; }