C# Programming Training Classes in O' Fallon, Missouri
Learn C# 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 C# Programming related training offerings in O' Fallon, Missouri: C# Programming Training
C# Programming Training Catalog
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- Introduction to Spring 6, Spring Boot 3, and Spring REST 
 15 December, 2025 - 19 December, 2025
- RED HAT ENTERPRISE LINUX SYSTEMS ADMIN II 
 8 December, 2025 - 11 December, 2025
- Fast Track to Java 17 and OO Development 
 8 December, 2025 - 12 December, 2025
- Object-Oriented Programming in C# Rev. 6.1 
 17 November, 2025 - 21 November, 2025
- RED HAT ENTERPRISE LINUX SYSTEMS ADMIN I 
 3 November, 2025 - 7 November, 2025
- See our complete public course listing 
Blog Entries publications that: entertain, make you think, offer insight
As someone who works in many facets of the music industry, I used to seethe with a mixture of anger and jealousy when I would hear people in more “traditional” goods-based industries argue in favor of music content-based piracy. They made all the classic talking points, like “I wouldn’t spend money on this artist normally, and maybe if I like it I’ll spend money on them when they come to town” (which never happened), or “artists are rich and I’m poor, they don’t need my money” (rarely the case), or the worst, “if it were fairly priced and worth paying for, I’d buy it” (not true). I always wondered if they’d have the same attitude if 63% of the things acquired by customers in their industries weren’t actually paid for, as was conservatively estimated as the case for the music industry in 2009 (other estimations put the figure of pirated music at 95%). Well, we may soon see the answer to curiosities like that. Though one can say with tentative confidence that music piracy is on the decline thanks to services like Spotify and Rdio, it could be looming on the horizon for the entire global, physical supply chain. Yes, I’m talking about 3d printers.
Before I get into the heart of this article, let me take a moment to make one thing clear: I think these machines are incredible. It’s damn near inspiring to think of even a few of their potentially world-changing applications: affordable, perfectly fit prosthetic limbs for wounded servicemen and women; the ability to create a piece of machinery on the spot instead of having to wait for a spare to arrive in the mail, or en route if your car or ship breaks down in a far away place; a company based out of Austin, TX even made a fully functioning firearm from a 3d printer a few months ago.
If these machines become as consumer-friendly and idiot-proof as possible (like computers), it’s possible that in a matter of decades (maybe less), a majority of U.S. households will have their own 3d printer. There’s also the possibility they could take the tech-hobbyist path, one that is much less appealing to the masses. Dale Dougherty of Makezine.com estimates there are currently around 100,000 “personal” 3d printers, or those not owned for business or educational purposes. I don’t think they’ll ever be as ubiquitous as computers, but there are plenty of mechanically inclined, crafty hobbyists out there who would love to play around with a 3d printer if it was affordable enough.
That being said, is there reason to worry about the economic implications of consumers making what they want, essentially for free, instead of paying someone else to produce it? Or will the printers instead be used for unique items more so than replicating and ripping off other companies’ merchandise in mass amounts? The number of people working in industries that would be affected by a development like this is far greater than the number of people who work in content-based industries, so any downturn would probably have a much larger economic implications. Certainly, those times are a ways off, but a little foresightedness never hurt anyone!
I will begin our blog on Java Tutorial with an incredibly important aspect of java development: memory management. The importance of this topic should not be minimized as an application's performance and footprint size are at stake.
From the outset, the Java Virtual Machine (JVM) manages memory via a mechanism known as Garbage Collection (GC). The Garbage collector
- Manages the heap memory. All obects are stored on the heap; therefore, all objects are managed. The keyword, new, allocates the requisite memory to instantiate an object and places the newly allocated memory on the heap. This object is marked as live until it is no longer being reference.
- Deallocates or reclaims those objects that are no longer being referened.
- Traditionally, employs a Mark and Sweep algorithm. In the mark phase, the collector identifies which objects are still alive. The sweep phase identifies objects that are no longer alive.
- Deallocates the memory of objects that are not marked as live.
- Is automatically run by the JVM and not explicitely called by the Java developer. Unlike languages such as C++, the Java developer has no explict control over memory management.
- Does not manage the stack. Local primitive types and local object references are not managed by the GC.
So if the Java developer has no control over memory management, why even worry about the GC? It turns out that memory management is an integral part of an application's performance, all things being equal. The more memory that is required for the application to run, the greater the likelihood that computational efficiency suffers. To that end, the developer has to take into account the amount of memory being allocated when writing code. This translates into the amount of heap memory being consumed.
Memory is split into two types: stack and heap. Stack memory is memory set aside for a thread of execution e.g. a function. When a function is called, a block of memory is reserved for those variables local to the function, provided that they are either a type of Java primitive or an object reference. Upon runtime completion of the function call, the reserved memory block is now available for the next thread of execution. Heap memory, on the otherhand, is dynamically allocated. That is, there is no set pattern for allocating or deallocating this memory. Therefore, keeping track or managing this type of memory is a complicated process. In Java, such memory is allocated when instantiating an object:
String s = new String(); // new operator being employed String m = "A String"; /* object instantiated by the JVM and then being set to a value. The JVM calls the new operator */
Communication is one of the main objectives that an organization needs to have in place to stay efficient and productive. A breakdown in accurate and efficient communication between departments at any point in the organization can result in conflict or loss of business. Sadly, the efficiency between different departments in an organization becomes most evident when communication breaks down. As an example, David Grossman reported in “The Cost of Poor Communications” that a survey of 400 companies with 100,000 employees each cited an average loss per company of $62.4 million per year because of inadequate communication to and between employees.
With the dawning of the big-data era and the global competition that Machine Learning algorithms has sparked, it’s more vital than ever for companies of all sizes to prioritize departmental communication mishaps. Perhaps, today, as a result of the many emerging markets, the most essential of these connections are between IT and the business units. CMO’s and CIO’s are becoming natural partners in the sense that CMO’s, in order to capture revenue opportunities, are expected to master not just the art of strategy and creativity but also the science of analytics. The CIO, on the other hand, is accountable for using technical groundwork to enable and accelerate revenue growth. Since business and technology people speak very different languages, there’s a need on both sides to start sharing the vocabulary or understanding of what is expected in order to avoid gridlock.
In the McKinsey article, Getting the CMO and CIO to work as partners, the author speaks to five prerequisite steps that the CMO and the CIO can take in order to be successful in their new roles.
	--- Be clear on decision governance
	Teams should define when decisions are needed, what must be decided, and who is responsible for making them.
In this tutorial I am going to give you a gentle introduction to network programming in Python. If you are new to programming or new to Python then that may seem like a daunting thought. But read on and you will be pleasantly surprised how easy it is.
Like most modern programming languages, Python was designed for networking from the very beginning, and thanks to that, a lot of the networking tasks you would want to accomplish with the language are made a whole lot easier.
Network communication is a large topic, but if it is something that interests you then read on because in this tutorial I will show you how to download a web page. I will show you how easy Python makes tasks like this.
Take a look at the following code:
import urllib
	
con = urllib.urlopen("http://hartmannsoftware.com")
page = con.read()
con.close()
print page
Tech Life in Missouri
| 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
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.  
                                - We have provided software development and other IT related training to many major corporations in Missouri since 2002.
- 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 C# Programming programming
- Get your questions answered by easy to follow, organized C# Programming experts
- Get up to speed with vital C# 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…















