This repository contains several examples of lambda expressions and the Stream API. You can see them in src/EmployeeManager.java
There is also a presentation that covers similar topics. It is designed to take about 1 hour with questions. View it in your browser here
And finally, in interactive-workshop is a modified version of the presentation to be in a format that allows for audience participation. The participants should load the code into their IDE and implement the methods using material taught in the presentation. This takes 1.5 to 2 hours. View it in your browser here