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Transitioning to Java 8

Course Code: 1260

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$1495

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Overview
Schedule classes
What you'll learn
Outline
Prerequisites
Who should attend

Overview

The Transitioning to Java course is designed for developers currently working on the Java 6 or Java 7 platform, who need to migrate their skills or applications to Java 8. The course helps participants master the skills necessary to implement the latest features and benefits of Java 8 and enable them to be effective Java 8 developers. The course covers Java 8 features such as functional programming, anonymous functions, lambda expressions and default methods, streams and collectors, new date/time API, StringJoiner and repeating annotations.

Schedule Classes

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Trivera

Course Delivery

This course is available in the following formats:

Live Classroom
Duration: 5 days

Live Virtual Classroom
Duration: 5 days

What You'll learn

What functional programming means and what it brings to the table
How Lambda expressions and functional interfaces can greatly enhance other aspects of Java
Explore the new ‘features’ of the Collection API
To use the new Stream constructs to work with Collections and Collectors
How to work with default methods and pass methods as arguments
How to use the new features to support concurrency in multi-code systems
To work with the new Date/Time API and other new features

Outline

Module 1: Overview of Java 8 features

Overview of Java 8 features and enhancements
Anonymous functions, Streams

Module 2: Evolving interfaces

Interfaces in Java 8
Default methods
Static methods
Multiple Inheritance?
Exercise: Interfaces

Module 3: Functional programming

Functional vs OO Programming
Anonymous Inner-classes
Utility Methods
Lambda Expressions

Module 4: Lambda expressions and functional interface

Lambda Expression Syntax
Functional Interfaces
Type Inference in Java 8
Method references
Exercise: Using Lambda

Module 5: Java 8 collection updates

Introduce the ConcurrentHashMap
Lambda expressions and Collections
Exercise: Functional Collections

Module 6: Streams

Processing Collections of data
The Stream interface
Reduction and Parallelism
Filtering collection data
Sorting Collection data
Map collection data
Find elements in Stream
Numeric Streams
Create infinite Streams
Sources for using Streams
Exercise: Working with Streams

Module 7: Collectors

Creating Collections from a Stream
Group elements in the Stream
Multi-level grouping of elements
Partitioning Streams
Exercise: Collecting

Module 8: The new Date/Time API

Introduce the new Date/Time API
LocalDate, LocalDateTime, etc.
Formatting Dates
Working with time zones
Manipulate date/time values
Exercise: Agenda

Module 9: Optional

Introduce Optional
Implement Optional attributes
Lambda expressions and Optional
Exercise: Optional

Module 10: Other new Java 8 features

StringJoiner
Repeating and Type Annotations
Parallel Array Sorting
Improved type inference
Method parameter reflection
Updated command line tooling
Exercise: Reflection
Exercise: Annotation Processing

Module 11: Java 8 concurrency updates

The common thread pool
Atomic variables
LongAdder and LongAccumulator
CompletableFuture
Non-blocking asynchronous tasks
Exercise: CompletableFuture

Module 12: Nashorn JavaScript engine (Optional)

Working with JavaScript and Java
Accessing Nashorn
Executing JavaScript from Java
Executing Java from JavaScript
Implementing a Java Interface
Alternatives to Nashorn
Exercise: Using JavaScript

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Prerequisites

Participants need to have a working knowledge of developing Java applications.

Who Should Attend

This is an intermediate-level Java developer course, and is highly recommended for experienced Java programmers.

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