Java Lambdas and Streams | Udemy


Java Lambdas and Streams | Udemy
English | Size: 1.38 GB
Genre: eLearning

What you’ll learn
Functional Interfaces – what they are and their relationship to lambda expressions.
Lambdas – anonymous inner class syntax versus lambda expressions.
Functional Interfaces from the API – sample code explaining Predicate/BiPredicate, Consumer/BiConsumer
Functional Interfaces from the API – sample code explaining Supplier, Function/BiFunction
Functional Interfaces from the API – sample code explaining UnaryOperator, BinaryOperator
Method References – their relationship with lambdas. Different types of method references explained with code – bound, unbound, static and constructor.
Method References – how the context helps in understanding them.
Streams – what they are, stream pipelines and stream laziness.
Streams – Terminal operations.
Streams – Terminal operations – reduce, collect() explained with code examples.
Streams – collect() using API collectors explained with code examples e.g. CollectorsDOTtoMap(), CollectorsDOTgroupingBy() and CollectorsDOTpartitioningBy()
Streams – Intermediate Operations explained with code examples e.g. filter(), distinct(), limit(), map(), flatMap() and sorted().
Streams – stateful and short-circuiting intermediate operations explained.
Streams – Primitive Streams – how to create them, what their API’s look like and how to map between them.
Streams – mapping between Object streams and primitive streams and vice versa.
Optionals – what they are and why they are useful. Sample code demonstrating their use.
Parallel Streams – how to create them. Sequential versus parallel stream processing.

This course is a systematic approach to explaining in both notes format and code examples, lambda expressions and streams in Java.

Topics include:

Lambdas:

Functional Interfaces

Lambdas and their relationship to Functional Interfaces

Lambdas in code using a custom Functional Interface

Lambdas in code using the pre-defined API Functional Interfaces:

Predicate/BiPredicate

Supplier

Consumer/BiConsumer

Function/BiFunction

UnaryOperator and BinaryOperator

final and “effectively final”

Method References:

bound

unbound

static

constructor

context and it’s effect in understanding method references

Streams:

Pipelines

Laziness

Creating streams

Terminal operations:

reduce()

collect()

Collectors.toMap()

Collectors.groupingBy()

Collectors.partitioningBy()

Intermediate operations:

filter(), distinct(), limit()

map(), flatMap(), sorted()

Primitive streams:

Creating

API

Functional Interfaces

Mapping between primitive streams

Mapping between primitive streams and Object streams and vice versa

Optionals

Parallel streams

This course is geared towards Java Certification i.e. the Predicate lambda sections would suit Java 8 OCA (1Z0-808). The remaining lambda sections and the streams sections would suit both Java 8 OCP (1Z0-809) and Java 11 (1Z0-819). This course explains the concepts through small, simple, targeted code examples. There are no MCQ’s or code exercises to be done.

For those who don’t know me, my “Java 8 OCA (1Z0-808) Course” is, at the time of writing, the highest rated Java 8 OCA course on Udemy. I am a lecturer since 2002 and have taught the OCA and OCP syllabii since 2013 on behalf of a highly regarded software company. On completion of the courses with me, graduates then face the company’s own internal Java Certification exam (similar in style to Oracle’s). I have no visibility into the questions they will face. It is a 3 hour long intensive exam. The company are delighted with the pass rate (100% since year 1).

I love teaching and this course has all my experience in explaining lambdas and streams in Java. I am delighted that Enthuware (the excellent Java certification training tool), have, in their explanations, linked to my YouTube channel.

Who this course is for:
Anyone interested in learning Lambdas and Streams (the Functional Programming aspects of Java 8).

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About WoW Team

I'm WoW Team , I love to share all the video tutorials. If you have a video tutorial, please send me, I'll post on my website. Because knowledge is not limited to, irrespective of qualifications, people join hands to help me.

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