Hansika

I would like to know is if a player goes all-in during the first betting round (after the pocket cards are dealt - pre-flop) do the non all-in players have to finish any and all bets they may have if they decide to stay in the hand and then the flop, turn and river are dealt to all players without anymore betting allowed or do the non all-in players continue to bet as normal during the pre-flop betting round and then the flop is dealt and the non all-in players continue to bet after the flop, turn and river as normal unless of course one or more of the non all-in players subsequently goes all-in?