Instructor-led training

Java 8 New Features Training in Shawnee, Kansas

Java Programming training from Hartmann Software Group, delivered onsite in Shawnee, Kansas or live online.

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What you'll learn

Java 8 introduces a number of revolutionary capabilities - many of them centered on lambda expressions and functional-style programming. These capabilities add powerful new programming techniques to the language, but also add complexity.

This concise course is focused on introducing the new capabilities and how to use them. It includes numerous code examples and programming labs that illustrate all of the new capabilities.

The course is hands on, and requires that students be comfortable with writing general Java code at an intermediate level, including the use of interfaces.

Course Objectives:

- Be familiar with the additions to Java interfaces

- Understand and use functional interfaces

- Understand lambda expressions and method references, and use them to pass behavior (methods)

- Learn about the pre-defined functional interfaces, and use them with lambda expressions

- Understand and use the Stream API

- Process collections using streams, including chaining operations and using collectors

- Understand and use parallel streams

- Understand and deal with the issues of parallel processing

- Learn and use the new Data/Time API

- Be familiar with other new capabilities

Prerequisites

No programming experience necessary

Course Outline

1: What's new in Interfaces

Static Methods

Default Methods

Functional Interfaces

2: Introducing Lambda Expressions

Motivation for Lambdas

Lambda Expression Overview

Lambda Expressions and Functional Interfaces

Using Lambda Expressions

Working with Method References

3: The Stream API

Overview

Shortcomings of Collections

What are Streams?

Chaining - Intermediate and Terminal Operations

- Understanding the Stream API

Overview - java.util.stream types (Stream, Collector, ...)

Keys to Understanding the API

Important Functional Interfaces: Predicate, Comparator, Function

- Stream Processing

Using filter()

Sorting / Comparator.comparing()

Using map()

Other operations: peek(), distinct(), limit(), skip()

Result producing terminal operations - collect, min/max ...

void Terminal Operations - forEach()

Existence (e.g. anyMatch) and Finder (e.g. findAny) Operations

- Collectors

Roles and Capabilities

Collectors.toList(), Collectors.toSet()

Supplier and Collectors.toCollection()

Partitioning and Grouping Collectors

4: Parallel Processing and Concurrency

li>Overview

Java 8 Parallel Processing using Streams

Ground Rules / Requirements for Using Parallel Stream Processing

Multithreading / Concurrency Issues

Race Conditions, Data Synchronization, Locks

Performance Issues and Considerations

5: Date/Time API

Overview and Limitations of Previous API

The Date/Time API (JSR 310)

Creating and Working with LocalData/LocalTime/LocalDateTime Instances

Formatting Date/Time

Localization / Time Zones

Periods and Durations

Performing Calculations on Data/Time types

6: Other Capabilities

Compact Profiles

Using Optional Instead of null

Repeatable and Type Annotations

Nashorn JavaScript Engine

Minor New Features

Training locations

Java 8 New Features training across the U.S. and beyond.

We provide Java 8 New Features training onsite and live online for organizations throughout the United States and internationally.

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or call 303.377.6176