Java 8 Stream vs Collection Storage

Question

I have been reading up on Java 8 Streams and the way data is streamed from a data source, rather than have the entire collection to extract data from.

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Answer 1

A stream is just a view of the data, it has no storage of its own and you can't modify the underlying collection (assuming it's a stream that was built on top a collection) through the stream. It's like a "read only" access.

If you have any RDBMS experience - it's the exact same idea of "view".