Advanced Java Programming Training Course

Who should attend

Java developers looking to increase their understanding and abilities with the more advanced Java APIs and capabilities.

Prerequisites

You should be comfortable with the topics in our Intro Java Programming training course or have similar experience, with at least 6 months' solid Java coding experience.

On-site

• If you are interested in custom / on-site advanced Java training for any size of team, please get in touch – we would be glad to help build a course that meets your team's project requirements.

We can take into account your existing technical skills, project requirements and timeframes, and specific topics of interest to tailor the most relevant and focussed course for you.

Testing JUnit 5.0

• Unit Testing – the very idea!
• JUnit History
• JUnit Architecture and Terminology
• JUnit Platform, JUnit Jupiter, JUnit Vintage
• Setting up JUnit
• JUnit Conventions
• Annotations
• Fixtures
• Assertions and Assumptions
• Nested Tests
• Exception testing
• Test Suites
• Dynamic tests

Mocking with Mockito

• What is Mocking?
• Why Mock?
• Mocking with Mockito
• Defining Mock behaviour
• Returning Values
• Verifying Behaviour / spying
• Mockito Annotations
• Writing tests using Mockito

Java 9+ Immutable Collections

• Why Immutability?
• Immutability
• List.of Factory method
• Set.of Factory method
• Map.of Factory method
• Immutable Collection Nodes
• Java 10 Enhancement

Java Garbage Collection

• Overview of Garbage Collection
• Different GC options
• Generational collectors
• Heap organization
• Garbage collection monitoring and tuning

Java Message Service

• JMS Introduction
• Point-to-Point Systems
• Publish-and-Subscribe Systems
• Publishing queues and topics
• ActiveMQ
• Sending and receiving message via a queue and topics
• Message Driven Beans
• Message Types
• Durable Subscriptions

Java 11 Standardized HTTP Client

• New Standardized HTTP Client
• HttpRequest object
• HttpClient
• Sending Requests
• Asynchronous clients
• Working with Post and Body oriented facilities
• WebSockets

Java 8/ 9 Interfaces

• Java 8 Default Methods
• Java 8 Static Interface Methods
• Using Java 8 interfaces as Mixins
• Java 9 private methods
• Java 9 private static methods
• Use of Java 8 and 9 interfaces

Java 9+ Modules

• Why we need Modules
• Java Platform Module System
• Module Concepts
• Module Types
• System Modules
• Module Descriptions
• How Modules are Defined
• Creating a Single module app
• Executing a Single Module app
• Creating a Jar file
• Importing a package
• Multi-Module Applications
• Requires / Exports Directives
• Services
• Service Client Modules
• Multi Java Version Modules

Java 9 Concurrency

• Reactive Programming
• Flow API
• Java 9 Flow API
• Flow Publishers
• Flow Subscribers
• Subscriber Example
• Publishing to Subscriber
• Flow Processor

Reactive Programming and RxJava

• Introduction to RxJava
• Setting up RxJava
• RxJava concepts
• Creating an Observable
• Creating Observers / Subscribers
• OnNext, OnError and OnCompleted
• Pipes, Observable Operators and transformers
• Connectable Observables
• Subjects
• Hot and Cold Observables
• Back Pressure options

Futures and Java 8/9 Completable Futures

• CompletableFutures
• Background on Futures in Java
• CompletableFutures in Java 8
• Working with a Completable Future
• Acting on Completion
• Combining Operations
• Composing CompletableFutures
• Combining CompletableFutures
• Waiting for CompletableFutures
• Error Handling
• CompletableFuture Timeouts and Delays

Java 9 Processes

• Process updates in Java 9
• Obtaining the PID
• Process Handle
• Obtaining Information on a Process