Programming in C

108 Chapter 7 Working with Arrays

Program 7.5 Output

array_values[0] = 0

array_values[1] = 1

array_values[2] = 4

array_values[3] = 9

array_values[4] = 16

array_values[5] = 25

array_values[6] = 36

array_values[7] = 49

array_values[8] = 64

array_values[9] = 81

In the declaration of the array array_values, the first five elements of the array are ini-

tialized to the square of their element number (for example, element number 3 is set

equal to 3^2 or 9).The first forloop shows how this same type of initialization can be

performed inside a loop.This loop sets each of the elements 5 through 9 to the square of

its element number.The second forloop simply runs through all 10 elements to display

their values at the terminal.

Character Arrays

The purpose of Program 7.6 is to simply illustrate how a character array can be used.

However, one point is worthy of discussion. Can you spot it?

Program 7.6 Introducing Character Arrays

#include <stdio.h>

int main (void)

{

char word[] = { 'H', 'e', 'l', 'l', 'o', '!' };

int i;

for ( i = 0; i < 6; ++i )

printf ("%c", word[i]);

printf ("\n");

return 0;

}

Program 7.6 Output

Hello!