Abstractions in programming, while hiding complexity and creating more distance to that machine code, help programmers get closer to the actual problems they’re trying to solve.

This tutorial demonstrates the power of lambda expressions by contrasting implementations of a mathematical example using C++, Java without lambdas, and Java 8 with lambda expressions.

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.