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Meaning of FIFO behaviour

Ravi Kiran Va
Ranch Hand

Joined: Apr 18, 2009
Posts: 2234

Hi ,

I am reading about what Collection class to use when we want FIFO behaviour .

Please tell me what does it mean by FIFO behaviour . I think when we add elements to a COntainer (DataStructures)

For example say :

please let me know what is the First in here , whether it will be One or Three in this case ??

Thanks i advance .

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fred rosenberger
lowercase baba

Joined: Oct 02, 2003
Posts: 11920

FIFO means "First In, First Out". It's like a queue or a line at Starbucks. since "ONE" was the first thing you put it, it is at the beginning.

LIFO means "Last In, First Out". this is like a stack of plates. the last item you put on it is on top, and will be the first one to come out.

There are only two hard things in computer science: cache invalidation, naming things, and off-by-one errors
Ravi Kiran Va
Ranch Hand

Joined: Apr 18, 2009
Posts: 2234

Thank you very much.
I agree. Here's the link:
subject: Meaning of FIFO behaviour
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