Udemy – Functional Programming in Java – Java Lambdas and Streams

Udemy – Functional Programming in Java Java Lambdas and Streams
English | Tutorial | Size: 1.42 GB

Mastering Lambdas and Streams in Java (with lots of code examples)

UPDATE February 2023 – streams assignment added!

UPDATE June 2022 – I have just published my Java 17, Java 11, Advanced Java 8 (1Z0-829,1Z0-819,1Z0-809) course. Lambdas and Streams are contained in that much larger course. Please check out the new course as it may be much better value.

UPDATE April 2022 – lambdas/method references assignment added!

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

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.

For those who don’t know me, my “Complete Java 8 OCA (1Z0-808) Java Certification 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.

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