Extreme Java - Advanced Topics Course

Prerequisites

This course is ideally suited to the professional Java programmer with at least 2 years experience, who would like to learn how to program advanced core Java.

• Previous Training: Design Patterns Course (Recommended).
• Required Experience: At least two years of professional Java programming.

Pricing Options

We have several options for you to join this course:

1. Virtual In-house Course:

Presented via video conference to your team of programmers by the author of the course. Price is €5500 for up to 10 students, above that is an additional €500 per student.

• Example 1: Course with 8 students taught remotely via video conference, price is €5500. Price per student is €687.
• Example 2: Course with 12 students taught remotely via video conference, price is €6500. Price per student is €541.
• Example 3: Course with 24 students taught remotely via video conference, price is €12500. Price per student is €520.

Please contact us if you have any questions.

2. In-person In-house Course:

Presented at your company in-person by one of our Certified JavaSpecialist Instructors. Price is €8100 for up to 10 students, above that is an additional €810 per student, plus the travel expenses of the instructor. Note that for in-person in-house courses, we need a minimum of three consecutive training days.

• Example 1: Course with 8 students taught on-site at your company, price is €8100. Price per student is €1012.
• Example 2: Course with 12 students taught on-site at your company, price is €9720. Price per student is €810.
• Example 3: Course with 18 students taught on-site at your company, price is €14580. Price per student is €810.

Please contact us if you have any questions.

2. Open Enrollment Classroom Course:

We occasionally offer this course as a classroom course in Chania on the Island of Crete. Price for the course is €1749 per student.

We also offer this course as an open enrollment live remote course that you can attend from anywhere. Price is €1189 per student.

Please contact us if you have would like to make a booking or if you have any questions.

4. Self-Paced Course:

This course is also available as a self-paced course.

Please contact us if you have any questions.

* Prices exclude EU VAT and withholding taxes where applicable. Please contact us for an exact quote for your country.

Open Courses

All our courses are offered as in-house courses. Please contact us on heinz@javaspecialists.eu.

* Price is excluding EU VAT where applicable. Please contact us for an exact quote for your country.

Detailed Outline

Extreme Java - Advanced Topics

The "Extreme Java - Advanced Topics" Course lasts 2 days.

We spend approximately 50% doing active hands-on labs.

Each days training starts at 9:00am and ends at 17:00, with about one hour of lunch and 30 minutes of tea / coffee / nicotene breaks.

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• 1. Introduction
• Welcome!
• Course organization
• Course overview

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• 2. Java IO
• Object Streams and Serialization
• Object Serialization
• Simple Object Serialization
• Serializable Fields
• Resetting Streams
• readObject() / writeObject()
• Controlling Serialization
• Serial Object Versioning
• Overriding Versioning
• Serialization Performance
• Serialization Pitfalls
• Java New IO Package
• Motivation for Using
• Working with Buffers
• Allocating Buffers
• Buffers Advantages
• Channels
• Memory Mapped Files
• Non-Blocking Operations

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• 3. Java Memory
• Garbage Collection
• Overview
• Generational Spaces
• GC Tasks
• Heap Fragmentation
• Escape Analysis
• GC Pros and Cons
• Measuring GC Activity
• Performance
• Object Size
• Tuning JVM
• Performance Tuning
• Memory Leaks
• Loitering Objects
• Object Churn
• Heap Sizing
• Finalizers
• How it works
• Performance Implications
• Other references

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• 4. Reflection API
• Overview
• Introduction
• Usefulness of Reflection
• Dangers of Reflection
• Examining Classes
• Reflection Package
• Retrieving Class Objects
• Working with Class Objects
• Accessing fields
• Accessing methods
• Manipulating Objects
• Creating new objects
• Getting and Setting Fields
• Final fields
• Invoking Methods
• Working with Arrays

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• 5. Data Structures
• Time Complexity
• Algorithm Complexity
• Examples from Java
• Iteration
• Iterators
• "for-each" iteration
• Iterable interface
• ConcurrentModification
• CopyOnWrite Collections
• Hashing
• How Hashing Works
• JDK 1.4+ rehashing
• Compound Keys
• Linked Maps
• Sorting
• Defining Natural Order
• Comparators
• Trees
• Queues
• Queues
• PriorityQueue
• BlockingQueue
• Deques

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• 6. Exceptions
• Error Handling
• Class Hierarchy
• Exception Class
• Error Class
• Best Practices
• Checked vs. Unchecked
• Avoid Custom Exceptions
• Writing Good Exceptions
• Wrap Low Level Exceptions
• Avoid Catching "Programmer Bug" Exceptions
• Performance of Exceptions
• Chain Exceptions
• Avoid Swallowing Exceptions
• Cleanup After An Exception
• Java 7 try-with-resource
• Losing an Exception in finally
• Never Abuse Exceptions for Flow Control
• Throw Exceptions Early
• Catch Exceptions Late
• Good Throws Clauses
• Document Exceptions
• Unit Test Exceptions
• Assertions
• Mechanism
• "assert" Statement
• When to Use
• When Not to Use
• JVM switches

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• 7. Dates and Time Zones
• Computer Time
• Time Synchronization
• Human Time Interpretation
• Time in Java
• Introduction
• java.util.Date
• JSR310 vs Joda Time
• java.util.TimeZone
• java.util.DateFormat

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• 8. Logging
• Overview
• Why log?
• Principal Requirements
• Main Logging APIs
• Best Practices
• Defining Logging Scheme
• Logging Levels
• Log Messages Format
• Centralized Logging
• Code Guards
• Exceptions
• Reviewing Logging
• Impact on Performance
• Unecessary Strings
• Writing to Disk
• Asynchronous Logging

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• 9. Conclusion
• Where to next?
• Never stop learning!