1 - Review of What is New in Java 9

• Overview of 'smaller' Java 9 topics
• Java versioning
• The JDK/JRE file structure
• Deprecation
• The jdeprscan tool
• Multi-Release JAR Files
• HTML 5 compliant JavaDoc
• Exercise: Creating a MRJar

2 - Milling Project Coin

• Changes made to the language since Java 6
• Multi-catch
• Using effectively final variables in try-with-resources
• Suppressed Exceptions
• Binary literals
• Reserved underscore (Java 9)
• Type inference in anonymous classes (Java 9)
• @SafeVargs (updates in Java 9)
• Default and static methods in interfaces (Java 8)
• Private methods in interfaces (Java 9)
• Exercise: Try-With-Resources

3 - Why JigSaw

• Problems with Classpath
• Encapsulation and the public access modifier
• Application memory footprint
• Java 8s compact profile
• Using internal JDK APIs

4 - Introduction to the Module System

• Introduce Project Jigsaw
• Classpath and Encapsulation
• The JDK internal APIs
• Java 9 Platform modules
• Defining application modules
• Define module dependencies
• Implicit dependencies
• Implied Readability
• Exporting packages
• Exercise: Defining Modules

5 - The Module Descriptor

• Define module requirements
• Explain qualified exports
• Open modules for reflection
• Use ServiceLoader
• The provides and uses keywords
• Exercise: Modules and the ServiceLoader
• Exercise: Using Reflection on modules

6 - Working with Modules

• Being backwards compatible
• The ModulePath and ClassPath
• Unnamed Modules
• Automatic Modules
• The JLink tool
• Exercise: Migrating to modules

7 - JShell

• Introduction to JShell
• Running Expressions in JShell
• Importing packages
• Defining methods and types
• Using the JShell editor
• Save and loading state
• Exercise: Working with JShell

8 - Other New Java 9 Features

• Enhancements on the Optional class
• Improvements made in the Process API
• The Stack-Walking API
• The HTTP2 Client
• The Multi-Resolution API
• Exercise: Working with Native processes
• Exercise: HTTP Clients

9 - Performance Optimizations

• Performance in Java 9
• Compact Strings
• String deduplication
• Ahead-Of-Time Compilation
• Hotspot Diagnostic commands
• The G1 Garbage collector
• Variable and Method Handles

10 - Multithreading

• Principles of Multithreading
• Creating a Threaded Class
• Basic Features of the Thread Class
• Thread Scheduling
• Thread Synchronization
• Exercise: Simple Thread Class
• Exercise: Simple Runnable Class

11 - Concurrent Java

• Concurrent Locks are Explicit and Flexible
• Executor Interfaces Provide Thread Management
• Challenges for Concurrent Use of Collections
• Concurrent Collections
• Atomic Variables Avoid Synchronization
• Exercise: Working with Concurrent Java
• Exercise: Sleeping Threads
• Exercise: Safe Data Access
• Exercise: Producer/Consumer

12 - Java 8 Concurrency Updates

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

13 - Introspection and Reflection

• Reflection classes
• Introspection
• Dynamic invocation of methods
• Using annotations
• Type annotations
• Receiver parameter
• Exercise: Introspection and Reflection
• Exercise: Reflection Server

14 - Reference Objects

• List the kinds of object references available in Java
• Introduce Weak, Soft and PhantomReference
• Explain the ReferenceQueue

15 - Objects, Declarations, and Initializations

• Abstraction and Responsibilities
• Low Coupling
• Programming principles
• Inheritance

16 - Exceptions

• Proper use of Exceptions
• Managing state in exceptional situations
• Checked vs. Unchecked Exceptions

17 - Profiling and Benchmarking

• List and describe the two types of benchmarks
• Describe the criteria that should be considered when constructing a benchmark plan
• Name the three most useful targets for profiling
• List four common tools/techniques for profiling
• Describe two strategies for improving performance as a result of profiling data
• List and explain the five most common problem areas for good performance with Java

18 - Profiling Tools

• Use the JDK to collect runtime profiling data
• Successfully read the profiling data generated by the JDK to detect performance bottlenecks
• Instrument your own code to collect method execution time data
• Exercise: Using the JVM Profiling Tools and Visual VM

19 - Code Optimization Techniques

• List three potential problems with strings
• List two ways to optimize loops
• Describe the advantages of private and final methods
• List two advantages of collections over vectors and hashtables
• List 4 other code and system optimizations
• Exercise: Code Optimizations

20 - Code Optimization Myths

• Debunk several myths of Java performance tuning
• Synchronization trade-offs
• Setting methods to be final
• String is not always bad
• Revisit the fundamentals of Java code performance
• How to detect a performance myth

21 - Design Optimization Techniques

• List five ways to optimize Java program design
• Exercise: Design Optimizations

Additional course details:

Nexus Humans Advanced Java 9 training program is a workshop that presents an invigorating mix of sessions, lessons, and masterclasses meticulously crafted to propel your learning expedition forward.

This immersive bootcamp-style experience boasts interactive lectures, hands-on labs, and collaborative hackathons, all strategically designed to fortify fundamental concepts.

Guided by seasoned coaches, each session offers priceless insights and practical skills crucial for honing your expertise. Whether you're stepping into the realm of professional skills or a seasoned professional, this comprehensive course ensures you're equipped with the knowledge and prowess necessary for success.

While we feel this is the best course for the Advanced Java 9 course and one of our Top 10 we encourage you to read the course outline to make sure it is the right content for you.

Additionally, private sessions, closed classes or dedicated events are available both live online and at our training centres in Dublin and London, as well as at your offices anywhere in the UK, Ireland or across EMEA.

FAQ for the Advanced Java 9 Course

Available Delivery Options for the Advanced Java 9 training.

• Live Instructor Led Classroom Online (Live Online)
• Traditional Instructor Led Classroom (TILT/ILT)
• Delivery at your offices in London or anywhere in the UK
• Private dedicated course as works for your staff.

How many CPD hours does the Advanced Java 9 training provide?

The 4 day. Advanced Java 9 training course give you up to 24 CPD hours/structured learning hours. If you need a letter or certificate in a particular format for your association, organisation or professional body please just ask.

Is the Advanced Java 9 training appropriate for someone learning to use Java in a professional environment?

Yes the Advanced Java 9 is appropriate for someone looking to use Java in a professional workspace or environment. But do make sure to note any prerequisites, read the course outline to ensure it is the right fit for you or your teams requirements and preferences.

What is the correct audience for the Advanced Java 9 training?

Programmers with prior Java 8 or 9 programming experience

Do you provide training for the Advanced Java 9.

Yes we provide corporate training, dedicated training and closed classes for the Advanced Java 9. This can take place anywhere in UK including, England, Scotland, Cymru (Wales) or Northern Ireland or live online allowing you to have your teams from across UK or further afield to attend a single training event saving travel and delivery expenses.

What is the duration of the Advanced Java 9 program.

The Advanced Java 9 training takes place over 4 day(s), with each day lasting approximately 8 hours including small and lunch breaks to ensure that the delegates get the most out of the day.

Why are Nexus Human the best provider for the Advanced Java 9?

Nexus Human are recognised as one of the best training companies as they and their trainers have won and hold many awards and titles including having previously won the Small Firms Best Trainer award, national training partner of the year for UK on multiple occasions, having trainers in the global top 30 instructor awards in 2012, 2019 and 2021. Nexus Human has also been nominated for the Tech Excellence awards multiple times. Learning Performance institute (LPI) external training provider sponsor 2024.

Is there a discount code for the Advanced Java 9 training.

Yes, the discount code PENPAL5 is currently available for the Advanced Java 9 training. Other discount codes may also be available but only one discount code or special offer can be used for each booking. This discount code is available for companies and individuals.