Definition: An uncertain duration of time, a period of time.
Alright class, settle down, let’s take a look!
That dictionary definition – “an uncertain duration of time, a period of time” – it gives you the gist, you see. But let's break it down with a little rhyme for clarity!
“
While
” in programming, my dears, is quite a key,
It means "do this
until
something isn’t free."
Think of it like this: a loop that spins and flows,
Continuing execution as long as the condition shows.
Let's say you're counting numbers, one by one, you see,
You'd use a "while" loop – “while count is less than ten,” agree?
The code inside the "while" keeps running true,
Until that condition changes, and then it’s through!
It’s all about
waiting
for something to be right,
And repeating actions with all of your might.
Key points to remember:
Condition First:
The "while" statement always starts with a condition – something you're checking. (Like “count is less than ten”)
True or False:
That condition will be either true or false, it’s plain to see. If it’s
true
, the code inside keeps going happily!
False Stops It:
If the condition becomes
false
, the "while" loop stops its dance, you agree?
Do you have any questions about this concept, class? Don't be shy – let's explore and understand it together.