This repository contains my Java notes about the new features of the Java Language. The src folder contains the java challenges found on the following youtube channel.

• What's the difference between map() and flatMap() methods in Java 8?
• Stream and the distinct operation
• Is flatMap guaranteed to be lazy?

• From javarevisited: What's the difference between map() and flatMap() methods in Java 8?
• Use Stream API simpler or don’t use it at all
• Map.merge() - One method to rule them all