Java’s collections like arrays and lists are foundational building blocks. Functional programming techniques are at times the ideal way to work with these collections.

In Functional programming for Java developers, Part 1, I used JavaScript examples to get you started with five functional programming techniques: pure functions, higher-order functions, lazy ...

SEE: Top 5 programming languages for systems admins to learn (free PDF) (TechRepublic) If you’re excited by the data and logic side of coding, you may wish to learn Python, Java, C, C++ or C#.