Java Programming Training Classes in O' Fallon, Missouri

Training Suggestions from an Expert

An Experienced Java developer must know

... everything or so it can seem.  A solid grasp and knowledge of Object Oriented Programming constructs such as inheritance, polymorphism, interfaces and reflection are essential.  Next in line is the knowldge to be able to import/export file data, running SQL queries, using regular expressions and, possibly, knowing how to write multi-threaded code and make socket connections.  A class that addresses most of these topics is:  Fast Track to Java 11 and OO Development.

For the more daring Java enthusiast and especially for those looking to become professional Java developers, knowledge of the Spring Framework is expected.  A perfect class for this is:  Fast Track to Spring Framework and Spring MVC/Rest.  Not only does this course provide students with a great introduction to spring, it goes beyond the basics with a solid delve into Spring and web development.

Another consideration is learning JBoss aka Wildfly, the free Application Server from RedHat.   JBoss has become the workhorse of most Java EE applications.  Add to that a class on Tomcat, the defacto servlet engine, and the student can be considered 'ready' for employment.

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Learn Java Programming in O' Fallon, Missouri and surrounding areas via our hands-on, expert led courses. All of our classes either are offered on an onsite, online or public instructor led basis. Here is a list of our current Java Programming related training offerings in O' Fallon, Missouri: Java Programming Training

We offer private customized training for groups of 3 or more attendees.
O'-Fallon  Upcoming Instructor Led Online and Public Java Programming Training Classes
Introduction to Spring 5, Spring Boot, and Spring REST (2021) Training/Class 17 October, 2022 - 21 October, 2022 $2250
HSG Training Center
O'-Fallon, Missouri
Hartmann Software Group Training Registration
Intermediate - Advanced Java 11 Training/Class 3 October, 2022 - 7 October, 2022 $2250
HSG Training Center
O'-Fallon, Missouri
Hartmann Software Group Training Registration

Java Programming Training Catalog

cost: $ 2090length: 5 day(s)
cost: $ 2090length: 5 day(s)

JBoss Administration Classes

JUnit, TDD, CPTC, Web Penetration Classes

cost: $ 890length: 1 day(s)

Java Enterprise Edition Classes

cost: $ 1090length: 2 day(s)

Java Programming Classes

Spring Classes

Course Directory [training on all levels]

Upcoming Classes
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Blog Entries publications that: entertain, make you think, offer insight

In Python, we can create three types of methods in a class:  instance or regular method, classmethod and staticmethod.  Instance methods are associated, as the name infers, with an instance or object of the class and take self as the first parameter.  Classmethods take a reference to the class, cls, as the first parameter of the class.  Staticmethods, for the most part, are convenience methods that could be declared as functions since they really do not have much to do with the class itself.  They were probably added at some time after the advent of Python in order to make the language more object oriented i.e. minimize the number of free floating functions. 

Refer the our article static, class and regular methods in Python for a detailed explanation on this subject.

Creating an enum in Python prior to Python 3.4 was accomplished as follows:

 

def enum(**enums)::
      return type('Enum',(),enums)

then use as:

Animals=enum(Dog=1,Cat=2)

and accessed as:

Animals.Dog

The new version can be created as follows:

from enum import Enum

class Animal(Enum):
    Dog=1
    Cat=2

As much as we love to assume free Wi-Fi is secure, this is far from the truth. Because you are attaching to a service many others are connected to as well, without security measures, your device can be hacked, especially if the network is unencrypted. Because this encryption involves handing out a 26-character hexadecimal key to every individual wanting to use that network, most places opt for ease of access over security. And even with a secure network, your information is vulnerable to everyone else who has the password and is on the network.

This may not seem like such a big deal and many people don’t believe they have anything to hide on their personal devices, but remember what you use on those devices. Chances are your e-mail is attached as well as all other social media sites. You may have apps that track your finances or private messages to certain others that you would never want anyone else to see. Luckily, there are steps that can be taken to reduce and prevent any unwanted information grabbers from accessing your personal information.

To start, go through your computer’s settings in order to verify your operating system’s security functions are all set to offer the highest protection. Open up the Control Panel and double check that your Firewall is enabled for both private and public networks. Then, go to Network and Sharing to open Change advanced sharing settings. In here, you can turn off file and printer sharing and network discovery for public networks.

One of the most important things to watch for is HTTPS. Hypertext Transfer Protocol Secure ensures secure communication across the web. Many of the major email systems use this when you log in (as another layer of password protection) but drop the security as soon as the login is complete. To keep this going, HTTPS Everywhere is a browser extension that gives you a secure connection when browsing some of the more popular sites. It can also be programmed for other sites you like to visit that don’t use HTTPS.

Not every place on the internet provides the choice of HTTPS, and VPNs are there to fill in the security gap. Virtual Private Networks allows data to be sent and received through public access points as if it were directly connected to a secure network. Many businesses offer this for company devices, but if you are an individual looking for that kind of security, ProXPN is a free version that can be upgraded. Unfortunately, it limits your speed, but other choices include VPNBook, OpenVPN Shield Exchange, and OkayFreedom.

With these three steps implemented, secure public Wi-Fi can be achieved. No longer will you have to worry about connecting in an unsure environment with strangers, never knowing if your information is being stolen. With all of the options free of charge, it is also an affordable means of protecting yourself that only takes a little time and effort to implement and guarantee safety.

 

In Demand IT Skills

Password Management Tools

Net Neutrality for the Layperson

What are a few unique pieces of career advice that nobody ever mentions?

It is said that spoken languages shape thoughts by their inclusion and exclusion of concepts, and by structuring them in different ways. Similarly, programming languages shape solutions by making some tasks easier and others less aesthetic. Using F# instead of C# reshapes software projects in ways that prefer certain development styles and outcomes, changing what is possible and how it is achieved.

F# is a functional language from Microsoft's research division. While once relegated to the land of impractical academia, the principles espoused by functional programming are beginning to garner mainstream appeal.

As its name implies, functions are first-class citizens in functional programming. Blocks of code can be stored in variables, passed to other functions, and infinitely composed into higher-order functions, encouraging cleaner abstractions and easier testing. While it has long been possible to store and pass code, F#'s clean syntax for higher-order functions encourages them as a solution to any problem seeking an abstraction.

F# also encourages immutability. Instead of maintaining state in variables, functional programming with F# models programs as a series of functions converting inputs to outputs. While this introduces complications for those used to imperative styles, the benefits of immutability mesh well with many current developments best practices.

For instance, if functions are pure, handling only immutable data and exhibiting no side effects, then testing is vastly simplified. It is very easy to test that a specific block of code always returns the same value given the same inputs, and by modeling code as a series of immutable functions, it becomes possible to gain a deep and highly precise set of guarantees that software will behave exactly as written.

Further, if execution flow is exclusively a matter of routing function inputs to outputs, then concurrency is vastly simplified. By shifting away from mutable state to immutable functions, the need for locks and semaphores is vastly reduced if not entirely eliminated, and multi-processor development is almost effortless in many cases.

Type inference is another powerful feature of many functional languages. It is often unnecessary to specify argument and return types, since any modern compiler can infer them automatically. F# brings this feature to most areas of the language, making F# feel less like a statically-typed language and more like Ruby or Python. F# also eliminates noise like braces, explicit returns, and other bits of ceremony that make languages feel cumbersome.

Functional programming with F# makes it possible to write concise, easily testable code that is simpler to parallelize and reason about. However, strict functional styles often require imperative developers to learn new ways of thinking that are not as intuitive. Fortunately, F# makes it possible to incrementally change habits over time. Thanks to its hybrid object-oriented and functional nature, and its clean interoperability with the .net platform, F# developers can gradually shift to a more functional mindset while still using the algorithms and libraries with which they are most familiar.

 

Related F# Resources:

F# Programming Essentials Training

Tech Life in Missouri

Missouri, known as the ?Show Me State?, has a growing science and biotechnology field. One of the largest gene companies, in the U.S. Monsanto, is based in St. Louis. The higher education system is governed by the Missouri Department of Education and includes 13 four-year universities and 20 two-year colleges.
The funny thing is, if you give two programmers the same problem-- it depends on the problem, but problems of a more mathematical nature, they can often end up writing the same code... Are we creating these things or are we just pulling the cobwebs off? Joe Armstrong - From the book: Coders at Work.
other Learning Options
Software developers near O' Fallon have ample opportunities to meet like minded techie individuals, collaborate and expend their career choices by participating in Meet-Up Groups. The following is a list of Technology Groups in the area.
Fortune 500 and 1000 companies in Missouri that offer opportunities for Java Programming developers
Company Name City Industry Secondary Industry
Patriot Coal Corporation Saint Louis Agriculture and Mining Mining and Quarrying
Solutia Inc. Saint Louis Manufacturing Chemicals and Petrochemicals
Monsanto Company Saint Louis Agriculture and Mining Agriculture and Mining Other
Kansas City Power and Light Company Kansas City Energy and Utilities Gas and Electric Utilities
The Laclede Group, Inc. Saint Louis Energy and Utilities Gas and Electric Utilities
Peabody Energy Corporation Saint Louis Agriculture and Mining Mining and Quarrying
Emerson Electric Company Saint Louis Manufacturing Tools, Hardware and Light Machinery
Energizer Holdings, Inc. Saint Louis Manufacturing Manufacturing Other
Centene Corporation Saint Louis Healthcare, Pharmaceuticals and Biotech Healthcare, Pharmaceuticals, and Biotech Other
Express Scripts Saint Louis Healthcare, Pharmaceuticals and Biotech Pharmaceuticals
Reinsurance Group of America, Incorporated Chesterfield Financial Services Insurance and Risk Management
Ameren Corporation Saint Louis Energy and Utilities Gas and Electric Utilities
DST Systems, Inc. Kansas City Computers and Electronics Networking Equipment and Systems
Inergy, L.P. Kansas City Energy and Utilities Alternative Energy Sources
Leggett and Platt, Incorporated Carthage Manufacturing Furniture Manufacturing
Cerner Corporation Kansas City Software and Internet Software
O'Reilly Automotive, Inc. Springfield Retail Automobile Parts Stores
AMC Theatres Kansas City Media and Entertainment Motion Picture Exhibitors
Sigma-Aldrich Corporation Saint Louis Manufacturing Chemicals and Petrochemicals
HandR Block Kansas City Financial Services Securities Agents and Brokers
Graybar Services, Inc. Saint Louis Wholesale and Distribution Wholesale and Distribution Other
Edward Jones Saint Louis Financial Services Personal Financial Planning and Private Banking
Arch Coal, Inc. Saint Louis Energy and Utilities Alternative Energy Sources
Brown Shoe Company, Inc. Saint Louis Retail Clothing and Shoes Stores
Ralcorp Holdings, Inc. Saint Louis Manufacturing Food and Dairy Product Manufacturing and Packaging

training details locations, tags and why hsg

A successful career as a software developer or other IT professional requires a solid understanding of software development processes, design patterns, enterprise application architectures, web services, security, networking and much more. The progression from novice to expert can be a daunting endeavor; this is especially true when traversing the learning curve without expert guidance. A common experience is that too much time and money is wasted on a career plan or application due to misinformation.

The Hartmann Software Group understands these issues and addresses them and others during any training engagement. Although no IT educational institution can guarantee career or application development success, HSG can get you closer to your goals at a far faster rate than self paced learning and, arguably, than the competition. Here are the reasons why we are so successful at teaching:

  • Learn from the experts.
    1. We have provided software development and other IT related training to many major corporations in Missouri since 2002.
    2. Our educators have years of consulting and training experience; moreover, we require each trainer to have cross-discipline expertise i.e. be Java and .NET experts so that you get a broad understanding of how industry wide experts work and think.
  • Discover tips and tricks about Java Programming programming
  • Get your questions answered by easy to follow, organized Java Programming experts
  • Get up to speed with vital Java Programming programming tools
  • Save on travel expenses by learning right from your desk or home office. Enroll in an online instructor led class. Nearly all of our classes are offered in this way.
  • Prepare to hit the ground running for a new job or a new position
  • See the big picture and have the instructor fill in the gaps
  • We teach with sophisticated learning tools and provide excellent supporting course material
  • Books and course material are provided in advance
  • Get a book of your choice from the HSG Store as a gift from us when you register for a class
  • Gain a lot of practical skills in a short amount of time
  • We teach what we know…software
  • We care…
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Interesting Reads Take a class with us and receive a book of your choosing for 50% off MSRP.