Good day! Why, if you add the boolean operator <= to the for loop, then the count will start from one, not from zero

Answer 1

<= is not boolean operator but comparison operator

if you use it in the comparison check of your counter as 'counter <= max' instead of 'counter < max', that doesn't change the start value ^^

the start value is what you define 'counter' to be before starting the loop...

if you want 'max' iterations, either initialize 'counter' at zero and use 'counter < max' OR initialize 'counter' at one and use 'counter <= max', because both [0,1,2,...,max-1] and [0,1,2,...,max] have 'max' elements ;P

Answer 2

Because index start from 0 and end with (length -1) so if you do <= then index should start from 1 but you may get exception.

For example if you have an array of 5 elements so if you do like this:

for (int i = 1; i <= 5; i++) {

}

in this case you will get exception if you access last element by doing arr[i] because last index is 4 but you are accessing 5.

In this case you have to access data of an array by doing arr[i - 1].