Why is this giving me this output?

Question

public static void main(String[] args) {
         
           int n=0, m=0, i=0,maxI=300;

            while(i++<maxI) n++;

                   i=0;

                 while(++i<maxI) m++;

                System.out.print(n+","+m+","+i)
}

The result of this code, when i printout nm,i is 300, 299, 300. What happened? I cant seem to figure out how it came to the result. I was expecting only i to have increased in line 2. Its giving me headaches

Answer 1

Why shouldn't 'i' increase also in line 4? It's post-incrementation, but it is, still, an incrementation.

Answer 2

Check your indentations, Be Careful about your pre and post increment for i(++i. i++). Because of which you get 299 for i(++i)