HARTMANN software group

Java Modules and New Features (Java 11+) Training in Leipzig, Germany

Enroll in or hire us to teach our Java Modules and New Features (Java 11+) class in Leipzig, Germany by calling us @303.377.6176. Like all HSG classes, Java Modules and New Features (Java 11+) may be offered either onsite or via instructor led virtual training. Consider looking at our public training schedule to see if it is scheduled: Public Training Classes
Provided there are enough attendees, Java Modules and New Features (Java 11+) may be taught at one of our local training facilities.
We offer private customized training for groups of 3 or more attendees.
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Course Description

  

Java’s new release cycle introduces new features at a more rapid pace, requiring increased attention from users. This course provides in-depth coverage of the important new features through Java 11 LTS. It also provides an overview of useful new features in Java 12+ that are likely to appear in Java 17 (the next LTS release).

Technical coverage starts with the new Java Platform Module System (JPMS), which presents a fundamental shift in how applications are organized, and interconnected to the libraries they use. We introduce modules from the ground up, show how to use them, describe your choices in usage, as well as caveats and pitfalls. We also provide guidelines for migration from non-modular applications.

The course covers many other new and powerful features that will be useful to developers (see the detailed outline for specifics). The course also includes several extra optional labs and guided self-study exercises in these additional areas.

The course is very hands-on, including numerous code examples and programming labs that reinforce the concepts presented, so that attendees can immediately employ what they’ve learned in their current projects.

Course Length: 2 Days
Course Tuition: $490 (US)

Prerequisites
Working knowledge of Java programming, including use of inheritance, interfaces, and exceptions

Course Outline

  
Preface: Java State of the Union
New Release Cycle
What's In
What's Out
The Move to Java Modules
 
Session 1: Introduction to Modules
Motivation and Overview
Types of Modules
Modular JDK
Our Approach
 
Session 2: Working with Java 9 Modules
Defining and Using Modules
Services
Compatibility and Migration
Conclusion
 
Session 3: Type Inference
Local-Variable Type Inference
Brief Overview of Lambdas
Local-Variable Syntax for Lambdas
 
Session 4: JShell
Introduction to JShell
Working with Code
Using Libraries (Modules, Jars, etc.)
 
Session 5: Http Client
Overview
API
Usage and Features
 
Session 6: Other New Features
Collection Factory Methods
Multi-Release JARs
Reactive Programming
Miscellaneous
Upcoming Features in Java 12+
 
Session 7: Custom Runtime Images
Application-Specific Runtimes
Benefits
Creating Runtime Images with jlink

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Java Programming Uses & Stats

Java Programming is Used For:
Android & IOS Development Software Products Video Games Desktop GUI's
Difficulty
Popularity
Year Created
1995
Pros

Most Commonly Used: 
According to Oracle, three billion devices run on Java.  And, because of its real-world applications, it consistently ranks at the top of the TIOBE Programming Community Index. 

Great Career Choice: 
Some of the fastest-growing salaries in the U.S. in 2018 are for Java developers.  (Glassdoor)  

Android Apps Development:
Developers predominatly use their Java skills in building apps for Google's Android. The Android platform is the number one mobile paltform in the world

It Can Run On Any Platform:
Java can compile on Windows and run the same compiled file on Linux, Windows and Mac.

Great Supporting IDE's:
Over the years, coding in Java has become simpler with the introduction of open source development tools, i.e. Eclipse and NetBeans that use Java capabilities for debugging.  
 
Cons

Uses a Lot of Memory:
Performance can be significantly slower with Java and more memory-consuming than natively compiled languages such as C or C++.

Difficulty in Learning: 
Learning Java can be a bit challenging if you are a beginner.  However, once you get the hang of Object Oriented Programming and a decent grasp of the syntax, you will be well on your way.

Slow Start Up Times:
There is quite a bit of one-time initialization done by JDK classes before compiling as well as loading classes and verification (making sure code doesn't do evil things, all of which takes longer that some other languages such as C. 

Verbose and Complex Code:
Long, over-complicated sentences make code less readable and scannable. Compare to let's say Python, we can see how clear Python code appears: It doesn’t require semicolons; uses “and,” “or,” and “not” as operators instead of Java’s “&&,” “||,” and “!”; and generally has fewer bells and whistles such as parentheses or curly braces.

Commercial License Cost:
Companies have to prepare for the changes that Oracle will institute in 2019 . Today, the current version of Java is free and available for redistribution for general purpose computing. However, If you are a DEVELOPER, Oracle recommends you review the roadmap information for Java SE 8 and beyond and take appropriate action depending on the type of application you develop and your distribution mode.
Java Programming Job Market
Average Salary
$102,000
Job Count
26,856
Top Job Locations

New York City 
San Jose
Washington D.C, 
Complimentary Skills to have along with Java Programming

- If you are an experienced Java developer, learning a complimentary language to Java should come much more naturally.  As an example JetBrains recently created the Kotlin programming language which is officially supported by Google for mobile development.  Kotlin compiles to Java bytecode and runs on the JVM; it's purported to address many of Java's shortcomings...

Interesting Reads Take a class with us and receive a book of your choosing for 50% off MSRP.