Java™ How To Program (Early Objects), Tenth Edition

Section 17.6.2 Filtering Employees with Salaries in a Specified Range

• To reuse a lambda, you can assign it to a variable of the appropriate functional interface type.

• The Comparator interface’s static method comparing (p. 753) receives a Function that’s used to extract a value from an object in the stream for use in comparisons and returns a Comparator object.

• A nice performance feature of lazy evaluation is the ability to perform short circuit evaluation—that is, to stop processing the stream pipeline as soon as the desired result is available.

• Stream method findFirst is a short-circuiting terminal operation that processes the stream pipeline and terminates processing as soon as the first object from the stream pipeline is found. The ...