Does The Execution Of The Code Wait For The Input?

Question

if (reading != buttonState) {
buttonState = reading; }
if (buttonState == HIGH) {
i++; }

if (i == 1)
digitalWrite(led2, HIGH);
if (i==4)
(do something)

Hello this is my code. I want someone to press a button lets say 4 times, will the code if 1 get executed instantly before someone presses a button 4 times ?

This is arduino btw.

Answer 1

after you increase i, you should make buttonState false.

Answer 2

the code as it is written will probably do this:
upon pressing the button, the loop will run 4 times in a few milliseconds increeasing I every time and continue as you pressed the button 4 times. Use a boolean flag to detect change state of the button. Don't forget debouncing the input. Tons of tutorials on line (see morse decoders for example)