Security Training Classes in Port Arthur, Texas
Learn Security in Port Arthur, Texas 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 Security related training offerings in Port Arthur, Texas: Security Training
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18 February, 2026 - 20 February, 2026 - AWS Certified Machine Learning: Specialty (MLS-C01)
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23 February, 2026 - 25 February, 2026 - See our complete public course listing
Blog Entries publications that: entertain, make you think, offer insight
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 */
Technology has continued to evolve in ways that few would have been able to imagine. This has allowed electronics to become smarter, more connected and far more useful.
With the Internet of Things (IoT), they're allowing more than just computers to become connected to the Internet. This aims to make the life of the average person easier, better and more care-free.
Let's examine why the Internet of Things has become such a powerful idea that an estimated one out of every five developers currently works on an IoT project.
What is the Internet of Things?
The Internet of Things hinges on one seemingly simple concept: electronics can be embedded in machines, clothing, animals and even people to provide a networked world where the whole is more than just the sum of its parts.
For example, consider how the Internet of Things can influence things like refrigerators. They can be networked directly to the manufacturer for readings that can warn if the refrigerator is about to malfunction. They can even be connected to a grocery shopping service to allow someone to restock them automatically or to notify the owner that the refrigerator is almost out of an item.
The most interesting notion about the Internet of Things is that it's not just a situation where one “thing” connects with a party. They typically communicate with other things, which in turn allows for a network of automated processes to occur.
These processes can simplify and expedite tedious tasks to make everyday life for everyone easier, which is why projects involving the Internet of Things are so popular.
How Prevalent is IoT Development?
An estimated one in five developers are currently developing projects for the Internet of Things. Their chosen languages vary widely because of the flexibility that IoT enjoys.
For example, IoT projects that hinge on interacting with mobile phones tend to have apps written in JavaScript or Java. The back-end code that runs the IoT functionality for machines tends to be written in Assembly, C++,Java,Perl,Pythonor another compiled language for efficiency.
To put the growth of IoT work into perspective, Evans Data Corp. performed research to create predictions about IoT projects in 2014. They stated that 17% of companies would be developing IoT projects.
In this year, that figure's risen to a solid 19%. Given the fact that 44% of developers have stated that they will enter into the IoT scene this year or next, this means that development will only grow in the coming future.
The Future Involving the Internet of Things
Development of IoT-related projects will likely explode in the next few years. The advantages it brings, such as more efficient work in manufacturing environments and the projected 15% savings to the restaurant industry over the next five years, will make it one of the most valuable technological changes in the near future.
Without a comprehensive understanding of the Internet of Things and the skills to lead IoT projects, businesses and developers may find themselves falling behind. Don't let the Internet of Things pass you by.
IT Job Roles and Responsibilities
1. Project Manager
A project manager, in this case, is someone that plays a managerial role in a company’s project. In fact, this is one of the most important IT job roles. The manager is responsible for his or her team. He or she makes sure that deadlines are met, and the project proceeds as planned. It mainly includes planning, design, initiation, monitoring, execution, and control.
2. IT Director
In most cases, the term director is associated with big positions in a company, and is often associated with a board role. As one of the top IT job roles, the IT director is responsible for planning, managing and executing the core-infrastructure of a company. The primary role of the IT director is to oversee all the technology operations within the firm. The director then evaluates what his or her team does to make sure that the activities are in line with firm’s main objectives. On top of that, the IT director makes sure that all departments have their technology needs met by his or her team.
3. IT Manager
The rank of an IT manager is definitely lower than that of a director, however, the role is still very crucial for any IT department. Every IT department has staff members that are meant to deliver results at the end of the day. The IT manager supervises most of the workers in the IT department. He or she is in charge of motivating them and making sure that they do what they are supposed to do. The IT manager’s roles include monitoring, planning, coaching, disciplining employees, and counseling.
4. Software Engineer
This position can also be referred to as a software architect, system engineer or application programmer. The main work typically involves creating and programming system-level software such as database systems, operating systems, and embedded systems. Their primary role is to ensure that they understand how both software and hardware work and to use them appropriately. However, the responsibilities don’t stop there. The software engineer is also required to interact with both colleagues and clients to explain which system or solution is going to be more suitable for use.
5. Systems Analyst
A systems analyst can also be called a solutions specialist, product specialist or a systems engineer. Their primary work mainly involves identifying, analyzing, and coming up with new information systems that will provide a viable solution. This is mostly done as a response to the requests of customers or just for the business. They also have to make sure that they determine the costs and total time required to bring the information systems into effect.
6. Helpdesk Support
There are times when your team could encounter system problems. Perhaps, a piece of hardware or software has malfunctioned. You need helpdesk support to deal with such issues. This is a professional that knows about common computer problems. Without them, business operations could stall because an employee can be stranded, and there’s no one to help.
7. Network Designer
As much as helpdesk support can solve most IT problems, there are other issues that they can’t solve. You may experience system shutdowns or slow internet. In that case, you need an expert in maintaining communication systems. These professionals will also be responsible for setting up cyber security systems for the organization.
IT involves many job roles and responsibilities that all work hand-in-hand to deliver results. As you begin your business, you should know about these roles so that you can know which ones are going to be the most suitable for your firm.
Applications are becoming more and more sophisticated as languages such as Python open the doors to the world of programming for people who have the creative vision but always felt actually writing code was beyond their grasp.
A large part of any programs success is based on how well it can react to the events which it has been programmed to understand and listen for.
A good example of an event would be when the user clicks a button on the applications window. What happens when that button is clicked?
Well, the first thing that happens is the operating system sends out a message to let any listening software know that the button was clicked. Next, your application needs to do something in response to that event.
Tech Life in Texas
| Company Name | City | Industry | Secondary Industry |
|---|---|---|---|
| Dr Pepper Snapple Group | Plano | Manufacturing | Nonalcoholic Beverages |
| Western Refining, Inc. | El Paso | Energy and Utilities | Gasoline and Oil Refineries |
| Frontier Oil Corporation | Dallas | Manufacturing | Chemicals and Petrochemicals |
| ConocoPhillips | Houston | Energy and Utilities | Gasoline and Oil Refineries |
| Dell Inc | Round Rock | Computers and Electronics | Computers, Parts and Repair |
| Enbridge Energy Partners, L.P. | Houston | Transportation and Storage | Transportation & Storage Other |
| GameStop Corp. | Grapevine | Retail | Retail Other |
| Fluor Corporation | Irving | Business Services | Management Consulting |
| Kimberly-Clark Corporation | Irving | Manufacturing | Paper and Paper Products |
| Exxon Mobil Corporation | Irving | Energy and Utilities | Gasoline and Oil Refineries |
| Plains All American Pipeline, L.P. | Houston | Energy and Utilities | Gasoline and Oil Refineries |
| Cameron International Corporation | Houston | Energy and Utilities | Energy and Utilities Other |
| Celanese Corporation | Irving | Manufacturing | Chemicals and Petrochemicals |
| HollyFrontier Corporation | Dallas | Energy and Utilities | Gasoline and Oil Refineries |
| Kinder Morgan, Inc. | Houston | Energy and Utilities | Gas and Electric Utilities |
| Marathon Oil Corporation | Houston | Energy and Utilities | Gasoline and Oil Refineries |
| United Services Automobile Association | San Antonio | Financial Services | Personal Financial Planning and Private Banking |
| J. C. Penney Company, Inc. | Plano | Retail | Department Stores |
| Energy Transfer Partners, L.P. | Dallas | Energy and Utilities | Energy and Utilities Other |
| Atmos Energy Corporation | Dallas | Energy and Utilities | Alternative Energy Sources |
| National Oilwell Varco Inc. | Houston | Manufacturing | Manufacturing Other |
| Tesoro Corporation | San Antonio | Manufacturing | Chemicals and Petrochemicals |
| Halliburton Company | Houston | Energy and Utilities | Energy and Utilities Other |
| Flowserve Corporation | Irving | Manufacturing | Tools, Hardware and Light Machinery |
| Commercial Metals Company | Irving | Manufacturing | Metals Manufacturing |
| EOG Resources, Inc. | Houston | Energy and Utilities | Gasoline and Oil Refineries |
| Whole Foods Market, Inc. | Austin | Retail | Grocery and Specialty Food Stores |
| Waste Management, Inc. | Houston | Energy and Utilities | Waste Management and Recycling |
| CenterPoint Energy, Inc. | Houston | Energy and Utilities | Gas and Electric Utilities |
| Valero Energy Corporation | San Antonio | Manufacturing | Chemicals and Petrochemicals |
| FMC Technologies, Inc. | Houston | Energy and Utilities | Alternative Energy Sources |
| Calpine Corporation | Houston | Energy and Utilities | Gas and Electric Utilities |
| Texas Instruments Incorporated | Dallas | Computers and Electronics | Semiconductor and Microchip Manufacturing |
| SYSCO Corporation | Houston | Wholesale and Distribution | Grocery and Food Wholesalers |
| BNSF Railway Company | Fort Worth | Transportation and Storage | Freight Hauling (Rail and Truck) |
| Affiliated Computer Services, Incorporated (ACS), a Xerox Company | Dallas | Software and Internet | E-commerce and Internet Businesses |
| Tenet Healthcare Corporation | Dallas | Healthcare, Pharmaceuticals and Biotech | Hospitals |
| XTO Energy Inc. | Fort Worth | Energy and Utilities | Gasoline and Oil Refineries |
| Group 1 Automotive | Houston | Retail | Automobile Dealers |
| ATandT | Dallas | Telecommunications | Telephone Service Providers and Carriers |
| Anadarko Petroleum Corporation | Spring | Energy and Utilities | Gasoline and Oil Refineries |
| Apache Corporation | Houston | Energy and Utilities | Gasoline and Oil Refineries |
| Dean Foods Company | Dallas | Manufacturing | Food and Dairy Product Manufacturing and Packaging |
| American Airlines | Fort Worth | Travel, Recreation and Leisure | Passenger Airlines |
| Baker Hughes Incorporated | Houston | Energy and Utilities | Gasoline and Oil Refineries |
| Continental Airlines, Inc. | Houston | Travel, Recreation and Leisure | Passenger Airlines |
| RadioShack Corporation | Fort Worth | Computers and Electronics | Consumer Electronics, Parts and Repair |
| KBR, Inc. | Houston | Government | International Bodies and Organizations |
| Spectra Energy Partners, L.P. | Houston | Energy and Utilities | Gas and Electric Utilities |
| Energy Future Holdings | Dallas | Energy and Utilities | Energy and Utilities Other |
| Southwest Airlines Corporation | Dallas | Transportation and Storage | Air Couriers and Cargo Services |
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 Texas 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 Security programming
- Get your questions answered by easy to follow, organized Security experts
- Get up to speed with vital Security 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…














