HARTMANN software group

Java Programming Training Classes in Bonn, Germany

Training Suggestions from the Experts

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.

Call for Details: 303.377.6176

Learn Java Programming in Bonn, Germany 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 Bonn, Germany: Java Programming Training

We offer private customized training for groups of 3 or more attendees.
get pricing information
Bonn  Upcoming Instructor Led Online and Public Java Programming Training Classes
Fast Track to Java 17 and OO Development Training/Class 5 May, 2025 - 9 May, 2025 $2090
HSG Training Center instructor led online
Bonn, Germany
Hartmann Software Group Training Registration
Introduction to Spring 6, Spring Boot 3, and Spring REST Training/Class 12 May, 2025 - 16 May, 2025 $2090
HSG Training Center instructor led online
Bonn, Germany
Hartmann Software Group Training Registration

Java Programming Training Catalog

subcategories

Advanced Java Language Topics Class
cost: $ 690.00length: 1 day(s)
Advanced Java Programming Class
cost: $ 2090length: 5 day(s)
Advanced Java Programming(3 days) Class
cost: $ 1290length: 3 day(s)
Ajax for Java Developers Class
cost: $ 1690length: 4 day(s)
Blaze Advisor for Java Developers Class
cost: $ 2090length: 3 day(s)
Continuous Integration with Jenkins Class
cost: $ 1090length: 2 day(s)
Fast Track to Java 17 and OO Development Class
cost: $ 2090length: 5 day(s)
Fast Track to Java 8 and OO Development Class
cost: $ 2090length: 5 day(s)
Fast Track to Java for OO Developers Class
cost: $ 1290length: 3 day(s)
Gentle Java and OO Development Class
cost: $ 1690length: 4 day(s)
Intermediate - Advanced Java 11 Class
cost: $ 2250length: 5 day(s)
Intermediate Java Programming Class
cost: $ 1090length: 2 day(s)
Introduction to Java Class
cost: $ 2090length: 5 day(s)
Introduction to Java Programming Class
cost: $ 1290length: 3 day(s)
Introduction to Spark 3 with Scala Class
cost: $ 1890length: 4 day(s)
Java 11 New Features Class
cost: $ 690length: 2 day(s)
Java 8 New Features Class
cost: $ 690length: 2 day(s)
Java Best Practices and Design Patterns Class
cost: $ 2090length: 4 day(s)
Java Fundamentals Class
cost: $ 2090length: 5 day(s)
Java Fundamentals for Non-C Programmers Class
cost: $ 2090length: 5 day(s)
Java Programming Class
cost: $ 2090length: 5 day(s)
Java Programming Version 8.0 Class
cost: $ 2090length: 5 day(s)
Java Programming Introduction Class
cost: $ 2090length: 4 day(s)
Java Web Programming Class
cost: $ 1090length: 2 day(s)
Java2 Advanced Programming Class
cost: $ 1190length: 3 day(s)
JDBC - Java Database Connectivity Class
cost: $ 690.00length: 1 day(s)
Migrating to Java 8 Version 8.0 Class
cost: $ 790length: 1 day(s)
Practical Java Language Topics Class
cost: $ 690.00length: 1 day(s)
Practical Java Programming Class
cost: $ 790length: 1 day(s)
The Java Persistence API Class
cost: $ 1690length: 4 day(s)
Tomcat Administration for Linux Class
cost: $ 1390length: 3 day(s)
Tomcat Administration for Windows Class
cost: $ 1390length: 3 day(s)
Using Java 8's New Features Class
cost: $ 1090length: 2 day(s)

JBoss Administration Classes

Fast Track to EJB 3.0 Using JBoss Class
cost: $ 1290length: 3 day(s)

JUnit, TDD, CPTC, Web Penetration Classes

Express JUnit Class
cost: $ 890length: 1 day(s)

Java Enterprise Edition Classes

Fast Track to EJB 3.0 (JEE 5 level) Class
cost: $ 1290length: 3 day(s)
Fast Track to Hibernate 3.x Class
cost: $ 1290length: 3 day(s)
Fast Track to Jakarta Struts Class
cost: $ 1290length: 3 day(s)
Introduction to ICEfaces Class
cost: $ 390length: 1 day(s)
Introduction to Spring 5 (2022) Class
cost: $ 990length: 3 day(s)
Introduction to Spring 5 and JPA2 Class
cost: $ 2190length: 5 day(s)
Java Enterprise Edition 6 Class
cost: $ 1690length: 4 day(s)
JavaServer Faces Class
cost: $ 1090length: 2 day(s)
JavaServer Faces (5 day) Class
cost: $ 2090length: 5 day(s)
JPA with Hibernate Class
cost: $ 1690length: 4 day(s)
JSF Development with ICEfaces Class
cost: $ 1690length: 1 day(s)
Secure Java Web Development Class
cost: $ 2090length: 5 day(s)
Securing Java Web Applications Class
cost: $ 1690length: 4 day(s)
Struts 1.2 Programming Class
cost: $ 1290length: 3 day(s)
The JSP Standard Tag Library Class
cost: $ 790length: 2 day(s)

Java Programming Classes

Intermediate and Advanced Java 8 Class
cost: $ 2090length: 5 day(s)
Intermediate Java 7 and OO Development Class
cost: $ 2090length: 5 day(s)

Spring Classes

Fast Track to Spring 2.x Class
cost: $ 1290length: 3 day(s)
Fast Track to Spring and Hibernate Class
cost: $ 2090length: 5 day(s)
Fast Track to Spring Framework 3.x Class
cost: $ 1290length: 3 day(s)
Introduction to Spring Batch Class
cost: $ 690.00length: 1 day(s)
Spring Framework Security Class
cost: $ 1090length: 3 day(s)

Course Directory [training on all levels]

Technical Training Courses
Software engineer/architect, System Admin ... Welcome!
Business Training Courses
Project Managers, Business Analysts, Paralegals ... Welcome!
Upcoming Classes
Gain insight and ideas from students with different perspectives and experiences.

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

How to invoke an external command in Python
[Mar, 28, 2014]    |
   Tags:

Invoking an external command in Python is a two step process:

 

from subprocess import call
call(["ls","-1"])

 

Three SQL Development Skills You Can't Live Without
[Apr, 19, 2013]    |
   Tags:

Learning SQL development can seem like an overwhelming task at first. However, mastering just a few key points will help ease your way through 80 percent of the day-to-day challenges when writing stored procedures and solving common problems. Here are three important SQL development factors to keep in mind:


Outer Joins
One of the most crucial things to understand in SQL server are joins. Joins are a way to retrieve data from two or more tables based on logical relationships between them. Joins dictate how Microsoft SQL Server ought to use data from one table to select the rows in another table.

In my experience inner joins are intuitive while outer joins can present additional hours of grief by overlooking associations in the other table(s). The outer join is the key to answering questions about what the database does not have. For example, if you need to make a query to display all the students who are without report-cards, you’ll need a left join to get all students coupled with a “where clause” to return the ones who have nulls for their report card table columns in the results.

Many talented Java script programmers have muddled through the SQL Server by deficient coding around the inner join. As a result, their queries can take five hours to run, whereas, properly written left joins, can take only two seconds to run.

Aggregation
Grouping results comes up in SQL a lot more than you might think. Knowing how to write a query when answering questions such as, “What’s the average grade for each teacher’s student list?” is invaluable. This kind of question cannot be answered with a single table or solely by joins.  You’ll often find you need to use joins in conjunction with group by statements. Always write the raw query first and then look at the results. Next, you have to figure out the best way to group them, rewrite your select clause and add a group by clause in the end.

Digging Through Data
I find this is the most lacking skill in many programmers. In fact, many otherwise-talented programmers holding Master’s Degrees fail to get jobs because they couldn’t analyze rows of data objectively during interviews. It’s just something that’s not taught but is crucial to get under you belt. Why? Eventually, some query is not going to perform as you may expect. And, the only way to find discrepancies is to look at rows of data, identify what join isn’t finding a match or where bad data is throwing things into chaos. Get familiar with how joins actually work, even if you have to manually walk through the logic of a large stored procedure’s tree of joins. It’s boring and time-consuming but absolutely necessary.


Take the time to master the core skills that will make you a successful SQL Programmer and avoid queries that run for five hours!

Python Tutorial - Static, Class and Regular Methods
[Nov, 19, 2012]    |
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This section of our beginning python training class always stumps students.  Firstly, because they need to know the difference between a function and a method.  Secondly, they need to understand object oriented programming concepts.  Thirdly, they need to realize that python has three types of methods.  Then they need to know how to use each method, which means they need to know the purpose of each method type.  Then they have to understand mutable versus non-mutable types.  The list goes on.  As part of our python tutorial, I hope to shed some light on this confusing topic.

To begin, the difference between a function and a method in python is that a method is defined within a class.  Here is an illustration:

#function

	def greeting():
	                print "Hello, I hope you're having a great day!"

	class HSGPrinter(object):
	                #method
	                def greeting(self): 
	                                print "Hello, I hope you're having a great day!"

As should be obvious, the second definition of greeting is encapsulated within the HSGPrinter class and is , therefore, refered to as a method.

The astute reader will notice that the greeting method contains one parameter named self.  For those who know C++ , Java or C#, self is equivalent to this i.e. it is a reference to the invoking object:

Security Risks That Small Businesses Should Know About
[Mar, 13, 2019]    |
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One of the biggest threats facing small businesses right now is cyber security. Hackers have figured out that small business don’t have robust systems; therefore, they are easy for the picking. If you are a small business owner, you know how limited your resources are. As such, every dollar counts. Therefore, you can’t afford to lose customers, deal with lawsuits caused by data breaches or pay IT help staff to try to fix the issue. Below are some of the IT risks faced by your business and potential consequences. Try your best avoid them at all costs. 
 
1. Phishing 
 
This is perhaps one of the easiest ways to detect if a hacker is trying to get into your system. If you happen to receive an email that claims to be from a financial institution and asks you to provide certain data, ignore it. In fact, delete it. This is because once you make the mistake of opening such a mail or clicking the link provided, you provide a gateway for hackers to penetrate your system and steal information. For this reason, it's vital that all employees  are aware of such emails and delete them without clicking on any links.
 
2. Passwords 
 
Another way that hackers can attack a small business is by cracking system passwords. If the hackers manage to crack the password of even a single employee, they can use that person’s account to gain unrestricted access to confidential company records. Therefore, tell your workers that they should never forgo strong password creation procedures. They should take their time to create a password that can’t be easily cracked. 
 
3. Vulnerable Devices 
 
In your small business, you probably use printers, routers, and other electronic hardware to execute office tasks. Most of the time, such pieces of hardware are connected to your firm’s network. If you have not updated the software on these machines, hackers can use them to gain access to your network and steal invaluable information. Therefore, make sure that you install patches in all electronic devices connected to your network. 
 
4. Lack of Data Encryption 
 
In the modern age, you can send information through various electronic devices. Some of those machines can have inbuilt security features to protect the data while others may not have. Data from the vulnerable devices can be easily intercepted by hackers. If the information is your password, your network is no longer safe. To counter such interceptions, always encrypt your data before your send it. 
 
5. Seemingly Misplaced USB Drives 
 
Some hackers will infect a USB drive with malware and then drop it outside your offices. An unknowing worker may pick up the drive and use it on a company computer. Immediately the drive is plugged in, it releases the malware and creates a unique access point for the hacker, allowing them to steal information. To avoid such a scenario, warn your employees against using any USB drives without a proper source. 
 
 
Managing a small business means that you’re a lean, mean business machine. Often, it’s just you and a few trusted staff members. This is the reason, business owners need to have solid knowledge of where and how most important data is held. Whether it’s on site, in traditional desktops and servers, or in cloud services or mobile devices including those "BYOD" devices of your employees, in order to avoid risks, always pay attention to your enviroment. It's important to make sure that you regularly update your system, train your employees, update software and fix bugs. Often, many IT issues are caused by the smallest, almost unapparent mistakes that will affect how a program runs or a web page looks. You might not see IT as your highest priority, but in the right hands, it can become your most powerful tool for growth. 

training details locations, tags and why hsg

the hartmann software group advantage
why take Java Programming Training with the hartmann software group?
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 Germany 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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