Operating on arrays with loops

When an array is present, a common operation is to iterate over all of its elements. For this, we typically use the for()… loop. We could also use any of the other looping statements described in Chapter 7, Exploring Loops and Iterations. However, because, more often than not, we know the loop's size, it is easier and more reliable to use a counter-controlled for()… loop. When we explore arrays of characters (or strings) in Chapter 15, Working with Strings, we will begin our exploration of sentinel-controlled loops.

To iterate over the array, the index counter is initialized to 0 (to match the zeroth offset), the continuation expression specifies that the index counter remains fewer than the number of elements, and the index counter is incremented at each iteration. The loop is as follows:

const int kArraySize = 25;

int anArray[ kArraySize ];

for( int i=0 ; i < kArraySize ; i++ )  {   

// i...