Streams

Streams are pipelines aren't syntactic sugar for regular loops. They're not modified to any other regular loops as part of the compilation.

• Each intermediate method returns the pipeline step.
• The terminal method then executes the entire pipeline that was passed to it.

streams vs collections

• Collections are data structures and hence used for storing data.
• Streams are pipeline engines and store no data. Just work on the data.

Streams work also with primitives

Streams can also work with int, long and double. This is because, streams are only about processing the data. The data need not be a Collection. Hence even primitive arrays are supported.