How and when is the while loop used?

Question

any help pls

Answer 1

you can use while loop whenever you want to repeat an action till some condition met. and you dont know when it ends. for example you can use it in game development:
while(player_status=="alive")
{
// keep running
}

Answer 2

when you want to create a loop that controled by the user...for an example only when he types his username the loop will run