Summary
In this chapter, we were introduced to streams, a new feature introduced in Java 8 inspired by functional programming and got ready to work with the new lambda expressions. A stream is a sequence of data (it is not a data structure) that allows you to apply a sequence of operations in a sequential or concurrent way to filter, convert, sort, reduce, or organize those elements to obtain a final object.
You also learned the main characteristics of the streams that we have to take into account when we use streams in our sequential or concurrent applications.
Finally, we used streams in two samples. In the first sample, we used almost all the methods provided by the Stream interface to calculate statistical data of a big dataset. We used the ...
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