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Migrating to from Java 7 to Java 8 | Transitioning to Java 8 (TT2130)

Quickly transition from Java 7 to Java 8 | Explore New Features, Lambda Expressions, Collection API, Streams, Concurrency and More.

Migrating from Java 7 to Java 8 | Transitioning to Java 8 is a two-day, hands-on fast-track course geared for developers who have prior working knowledge of earlier versions of Java. Throughout the course students learn the best practices for taking advantage of the new functional programming constructs in Java as well as other new features in this major update to the Java programming language.

GK# 101021 Vendor# TT2130
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Who Should Attend?

Java Developer, Testers, Application Developers, Software Developers, Full Stack Developers.

What You'll Learn

Students who attend this course will leave armed with the required skills to develop maintainable code that easily scales into multi-core environments. Geared for developers currently working in Java 6 or 7 who need to migrate their skills or applications to Java 8, this course will teach students everything they need to successfully master and implement the latest features and benefits of Java 8 and become an effective Java 8 developer.

Working within in an engaging, hands-on learning environment, guided by our expert team, attendees will 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
  • Specific Java 8 features covered include: Functional programming; Anonymous functions; Lambda expressions and default methods; Streams and Collectors; New Date/Time API; StringJoiner and repeating annotations

Course Outline

Session: Introduction to Java 8

Lesson: Overview of Java 8 Features

  • Overview of Java 8 features and enhancements
  • Anonymous functions, Streams

Lesson: Evolving Interfaces

  • Interfaces in Java 8
  • Default methods
  • Static methods
  • Multiple Inheritance

Session: Introduction to Lambda Expressions

Lesson: Functional Programming

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

Lesson: Lambda Expressions and Functional Interface

  • Lambda Expression Syntax
  • Functional Interfaces
  • Type Inference in Java 8
  • Method references

Session: Collection Updates

Lesson: Java 8 Collection Updates

  • Introduce the ConcurrentHashMap
  • Lambda expressions and Collections

Session: Streams

Lesson: 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

Lesson: Collectors

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

Session: Additional Java 8 Enhancements

Lesson: The new Date/Time API

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

Lesson: Optional

  • Introduce Optional
  • Implement Optional attributes
  • Lambda expressions and Optional

Lesson: Other new Java 8 features

  • StringJoiner
  • Repeating and Type Annotations
  • Parallel Array Sorting
  • Improved type inference
  • Method parameter reflection
  • Updated command line tooling

Lesson: Java 8 Concurrency Updates

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

Lesson: Nashorn JavaScript Engine (Optional)

  • Working with JavaScript and Java
  • Accessing Nashorn

Prerequisites

This course is designed for experienced Java 7 developers who wish to get up and running with Java 8 immediately. Attendees should have a working knowledge of developing Java 7 applications.

Follow-On Courses

Our core Java training courses provide you with a solid foundation for continued learning based on role, goals, or your areas of specialty. Attending this course will prepare you for ‘next-level’ study in intermediate Java skills, Reactive Java, Spring, testing and test-driven development, Java security training and more. We’re happy to make recommendations for the best next steps in your learning journey based on your unique role, needs and learning goals.