Introduction to Functional Programming Course (How To)

Functional Programming is an old paradigm, but one that is relatively new to the Java world. In this course we will explore how to take advantage of the power that comes with thinking declaratively.

What you'll learn

• Imperative vs. Declarative Syntax
• Lambdas & Method References
• Streams
• Functional Programming concepts
• Higher Order Functions and Closures

Java's Functional Toolset

Java 8 introduced new Functional Programming capabilities. Let's explore them!

Chevron 11 steps

• Introduction

  5:08

• Why Now?

  4:56

• Imperative vs. Declarative

  7:47

• Imperative vs. Declarative

  3 questions

• A More Functional Loop

  5:46

• Lambdas

  5:36

• Method References

  5:21

• Function Shapes

  9:31

• Supplier and Consumer

  2 questions

• Function Shapes - Function and Predicate

  4:36

• Function Shape Review

  4 questions

Meet Streams

Let's explore the Streams API which provides powerful declarative ways to process sequences of elements.

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• Understanding Streams

  4:56

• Setting Up the Project

  2:33

• Filtering

  9:36

• Collecting and Limiting

  11:16

• Transforming With Map

  9:29

• flatMap

  12:18

Reduction and Aggregation

Reduce, aggregate and use ranges!

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• Reduction Operations

  7:25

• Optionals

  9:56

• Optional Quiz...Homonym Fail, it is Required

  3 questions

• Ranges

  6:11

• Infinite Streams

  4:29

Functional Programming Fundamentals

Now that you've had some hands on experience, let's review some of important functional programming concepts with broader strokes.

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• Pure Functions

  4:06

• Side Effects

  4:45

• Keeping Things Pure

  3 questions

• Higher Order Functions

  8:22

• Higher Order Function

  2 questions

• Function Composition

  8:36

• Closures

  9:15

• Functionally Over

  1:48