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Master Lambda Expressions in Java 8

Name: Master Lambda Expressions in Java 8
Rating: 4.3 (36 reviews)

Simple, Practical & Complete - Become an Expert in Java Functional Programming

Created byMihaela Fodor

Last updated 5/2019

English

What you'll learn

You will master Lambda Expressions in Java
You will learn to write code using Lambda Expressions
You will fully understand what is Functional Programming
You will practice directly in the code every little new concept
You will have a complete understanding of the Built-In Functional Interfaces
You will understand why Lambda Expressions are better
You will master working with Method References
You will have a full understanding of all the syntax, accessibility and scoping rules
You will learn everything FAST and EASY due to lots of examples and visual explanations

Course content

8 sections • 29 lectures • 1h 36m total length

What will you learn in this course?2:17
Content Overview1:13
Answer two main questions: what is functional programming and how can we use it in Java by exploring lambda expressions, functional interfaces, and method references, including supplier, consumer, and function.
What is Functional Programming?4:31
What are the benefits of Functional Programming?5:45

What is a Lambda Expression?2:27
explains that lambda expressions form the base of functional programming in Java as anonymous functions with parameters, an arrow, and a body, with a string length example.
What are the Syntax Rules?5:47
Understand the Variables Access Rules3:21
Let’s do a Quiz together!2:43
Take this quiz to test your understanding of lambda expression syntax in Java 8, including braces around parameters, semicolons, return usage with braces, variable naming, and required parameter types.

What is a Method Reference?4:02
Explore method references as a concise alternative to lambda expressions, converting static and instance methods into functional interface implementations for simple calculator operations.
How to use of Method reference3:11
Explore using method references to replace complex lambdas in Java 8, distinguish static versus instance references, and apply constructor references via the supplier interface that returns an array.
Practical examples with Method References3:01

What are the Key Benefits of Lambda Expressions?1:28
Explore the key benefits of lambda expressions in Java 8, including code conciseness, readability, and maintainability. See how they enable functional style and parallel processing with streams.
Lambda Expression vs Concrete Class Implementation1:43
Lambda Expression vs Anonymous Inner Class - basic differences2:57
Lambda Expression vs Anonymous Inner Class - variables scope2:23
Lambda Expression vs Anonymous Inner Class - effectively final variables3:43

How to use Supplier2:40
How to use Consumer3:46
Learn to use the consumer functional interface in java 8, which accepts a single input and returns void via accept, with practical for-each style examples.
How to use Predicate & BiPredicate4:38
Explore predicate and bi predicate usage in Java 8 to test conditions, filter lists, and remove empty strings, using the test method and two-parameter forms with string and length limits.
How to use Function & BiFunction4:20
How to use UnaryOperator & BinaryOperator3:54
Recap Built-In Functional Interfaces1:19
Review built-in Java functional interfaces such as supplier, consumer, predicate, and function to reinforce how they generate values, consume input, test conditions, and transform types.

What are ALL the Primitive Functional Interfaces?4:19
This lecture introduces primitive functional interfaces in Java 8, including boolean and long suppliers, primitive consumers, predicates, functions, and binary operators.
Let’s do some exercises!3:44
More helpful Primitive Functional Interfaces3:08
Let’s do MORE exercises!7:04
Master lambda expressions by using functional interfaces to transform types, such as getting the length of a string with Function and converting doubles to ints with double-to-function via apply.

Requirements

Basic knowledge of Java language
No previous Functional Programming knowledge is needed

Description

What others say about this course:

"A really great course touching on a subject that is severely undervalued or overlooked by a lot of developers: lambda expressions and pure functional programming.

I love the simple code examples discussed in this course that allow you to understand easily and fast the practical way of using lambda expressions and how they can enhance your software problem solving abilities.

Also enjoyed the positive and friendly vibe of the course overall. Personally, I highly recommend it!"

"Very nice structured, good English, good examples, easy to follow!"

Welcome to this course!

Why is this course different from others?

Because it is Simple, Practical and Complete - these are the basic ingredients for a successful learning.

You want to be able to fluently code using Lambda Expressions.

You want to learn everything there is to know about Functional Programming in Java - all the different syntax and visibility rules, all the various cases of Method References, all the new Built-In interfaces and many more.

You want to understand all these new concepts FAST and EASY.

You want to understand why learning these new features is WORTHWHILE.

You want to be able to teach others about Lambda Expressions - THIS is the sign that you yourself have achieved a deep comprehension about these concepts.

You want to do many practical examples and exercises - this facilitates learning and profound understanding of the new concepts

You want to finish the course and jump into code and realize you can already juggle with Lambdas without any problem.

ALL of these you will get from this course.

The main topics covered in this course are:

What is Functional Programming and what are its Benefits?
What are Lambda Expressions - learn the syntax and accessibility rules
What are the benefits of Lambda Expressions?
What are Functional Interfaces and how to use them in practice
Learn to use all types of Method References
Learn to use the Basic Built-in Functional Interfaces from Java
Learn to use the Primitive Functional Interfaces from Java
Make a comparison between Lambda Expressions and Anonymous Inner Classes
Practice, Practice, Practice - lots of examples, exercises and quizzes

“TELL ME AND I FORGET. TEACH ME AND I REMEMBER. INVOLVE ME AND I LEARN.” – BENJAMIN FRANKLIN

Who this course is for:

Java developers, beginners or advanced, eager to learn Lambda Expressions in a quick and practical way
Anyone, even without a Java background, who wants to understand how Functional Programming works in Java

Master Lambda Expressions in Java 8

What you'll learn

Explore related topics

Course content

Getting Started4 lectures • 14min

Understand Lambda Expressions4 lectures • 14min

Understand Functional Interfaces2 lectures • 7min

Learn how to use Method References3 lectures • 10min

Advantages & Disadvantages of Lambda expressions5 lectures • 12min

Learn about the Built-In Functional Interfaces6 lectures • 21min

Learn about the Primitive Functional Interfaces4 lectures • 18min

The End1 lecture • 1min

Requirements

Description

Who this course is for: