For loop execution, increment confusion

Question

I don\'t get it why i in fillArray method ends up being equal to 10 even though the array score is filled only up to index 9

Answer 1

While others have already explained in detail , to eliminate confusion you could modify your code to something like :

        double next = keyboard.nextDouble();
        int i = 0;
        int current_i = i;
        for( i = 0; ( next >= 0 && i < a.length ); i++ )
        {
            current_i = i;
            a[i] = next;
            next = keyboard.nextDouble();
        }
        return current_i;

instead of

        double next = keyboard.nextDouble();
        int i = 0;
        for(i = 0;(next>=0 && i