Objective-C Programming: The Big Nerd Ranch Guide

The for loop

The while loop is a general looping structure, but C programmers use the same basic pattern a lot:

some initialization
while (some check) {
    some code
    some last step
}

So, the C language has a shortcut: the for loop. In the for loop, the pattern shown above becomes:

for (some initialization; some check; some last step) {
    some code;
}

Change the program to use a for loop:

#include <stdio.h>

int main(int argc, const char * argv[])
{
    for (int i = 0; i < 12; i++) {
        printf("%d. Aaron is Cool\n", i);
    }
    return 0;
}

Note that in this simple loop example, you used the loop to dictate the number of times something ...