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Udemy

Modern Java - Learn Java 8 features by coding it

via Udemy

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Overview

Learn Lambdas, Streams , new Date APIs, Optionals and Parallel programming in Java 8 by coding it.

What you'll learn:
  • Learn Functional programming in Java
  • Complete understanding of Lambdas, Streams , Optional via code.
  • Students will be able to implement the new Java 8 concepts in real time
  • Learn to build complex Streams Pipeline.
  • Learn the new Date/Time Libraries in Java 8
  • Learn to use Method Reference , Constructor reference syntax.
  • Learn and understand Parallel Programming with the Streams.
  • Student will be able to upgrade their Java knowledge with the new Functional Features.
  • This course will be continuously updated.

Learn the newJava 8Features by coding it. This is a pure codingcourse and you will get a completeunderstanding of all theJava 8features by coding it.

Why Should I take this course ?

  • This course will help theJavadevelopers to build their knowledge on the newJava 8features.

  • All the new features such asLambdas, Streams , Optionals, Functional Interfaces and Parallel Programmingwill be explained via code.

  • This course will give you the confidence on implementing newJava 8features in realJavaprojects.

  • By the end of this course you will have a complete understanding of new Java 8 functional features.

Course Overview :

Section 1 -Getting Started:

  • This section explains about what will be covered in this course.

Section 2-Why Java-8 ?:

  • This section covers Why Java 8 is important?.

  • This section explains about difference between Imperative Programming and Declarative Programming.

Section 3-WorkSpace Setup - Mac/Windows:

  • This section covers the installation ofJavaandIntelliJinMac and Windows.

Section 4: Introduction to Lambda

  • This section covers the Why Lambda is needed , Lambdas Syntax and How to implement Lambdas ?

  • Implement the Runnable interface using Lambdas.

  • Implement the Comparator interface using Lambdas.

Section 5: Lambdas and Functional Interfaces

  • This section covers the new Functional Interfaces that got introduced as part of Java 8.

    • Consumer Functional Interface

    • Predicate Functional Interface

    • Function Functional Interface

    • Supplier Functional Interface.

Section 6 : Constructor and Method References

  • This section covers the new Method Reference and the Constructor Reference.

    • How Method Reference simplifies the code.

    • How to use Method reference along with Lambdas.

    • How to use Constructor Reference to create new objects.

Section 7 : Lambdas and Local variables ( Effectively Final )

  • This section covers the local variable and how it should used in Lambdas.

  • Definition of Effectively Final scope of a variable.

Section 8 : Streams API

  • This section covers the Streams API which is one of the important feature that got introduced as part of Java8.

  • How the Stream API Works Internally ?

  • How Collections are different from Streams ?

  • How to debug a Stream ?

Section 9 : Streams API Operations

  • This section covers different Streams API operations that can be used in Streams to achieve an objective.

  • Streams Operations such as :

    • map()

    • flatMap()

    • distinct()

    • count()

    • filter()

    • reducer()

    • Map, Filter and Reduce pattern.

    • max()

    • min()

    • limit()

    • skip()

    • allMatch(), anyMatch() and noneMatch()

    • findAny() and findFirst()

  • Explanation of Stream operations that are Short Circuit operations.

Section 10 : Streams API - Factory Methods

  • This section covers different Streams API factory method that can be used to create Streams.

Section 11: Numeric Streams

  • This section covers the Introduction to Numeric Streams which can be used to perform some numeric related operations.

Section 12: Terminal Operations Streams

  • This section covers different way to collect the data from the Streams Pipeline.

  • Terminal Operations such as :

    • joining()

    • counting()

    • mapping()

    • max(), min()

    • sum()

    • average()

    • groupingBy()

    • partitioningBy()

Section 12: Streams API - Parallel Processing

  • This section covers how to perform the Parallel processing using Streams.

  • How Parallel Programming makes use of the processors in your machine to perform concurrency operations?

  • How Parallel Programming works internally ?

  • How to check the performance between the sequential and parallel programming ?

  • Scenarios when not to use parallel programming.

Section 12: Optional

  • This section covers What is Optional and the benefits of Optional.

  • How Optional can help you avoid Null Pointer exception.

  • Exploring the different operations that are part of Optional such as :

    • empty()

    • ofNullable()

    • of()

    • orElse()

    • orElseGet()

    • orElseThrow()

    • isPresent()

    • ifPresent()

    • map()

    • flatMap()

    • filter()

Section 12: New Date/Time Libraries

  • This section covers new Date/Time Libraries such as LocalDate, LocalTime, LocalDateTime.

  • How to create/edit the LocalDate,LocalTime and LocalDateTime instances using different approaches.

  • How to find the difference between the LocalDate, LocalTime and LocalDateTime using Period, Duration.

  • How to represent the time in the Machine Readable Format using Instant.

  • How to use the TimeZone using the ZonedDateTime.

  • How to Format the Date using the DateTimeFormatter.

By the end of this course you will have a complete understanding of all the Java 8 features and implement it in real Java projects.

Taught by

Dilip S

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