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For 2021 - online Python 3 training - see ((here)).

Our plans were to retire in summer 2020 and see the world, but Coronavirus has lead us into a lot of lockdown programming in Python 3 and PHP 7.
We can now offer tailored online training - small groups, real tutors - works really well for groups of 4 to 14 delegates. Anywhere in the world; course language English.

Please ask about private 'maintenance' training for Python 2, Tcl, Perl, PHP, Lua, etc.

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Web Application Deployment module A503
Java - Sourcing, Installing, Initial Testing
Exercises, examples and other material relating to training module A503. This topic is presented on public course Deploying Java Applications on Linux / Unix

Java is a Sun Microsystems technology. Since the specification is public, a number of different implementations are available, but it's more than likely that not that you'll want to download an install appropriate software from Sun's web site. This module covers the download, installation and initial testing of the Java 2 Software Development Kit.

Articles and tips on this subjectupdated
2079Java - Memory Allocation and garbage collection
When you're running a dynamic application (and most of the languages we teach these days are dynamic), memory is allocated and released as necessary at run time, with allocation happening 'as required' and being released from time to time by a garbage collector - there is no point is collecting a few ...
2184Choosing the right version of Java and Tomcat
Java is described as being a portable language. But that only means that the 'runnable' class files are fairly portable - you must download and install the correct Java Virtual Machine / Java Runtime Environment / Java Development Kit for your computer / operating system / needs. This diagram shows ...
2153Class Loading and Variable Conversion in Java
"Where did you get THAT from?" Ever heard that question? I've asked it of Java sometimes, in wondering where a Java virtual machine has found a class from ... and it's not always obvious. When loading a class, Java looks at each location given in the CLASSPATH in turn ... and if there are import ...
2080Using ApacheBench and jconsole to test and monitor Tomcat
jconsole lets you monitor Tomcat or another Java application so that you can see how much memory is in use, how many threads you have running, how many classes, etc. Here's an example of a Tomcat server that was sitting virtually unused ... which we then exercised through ApacheBench - the ab utility ...
1908Java CLASSPATH explained
When you run a Java program (be it though the java virtual machine or as a servlet within a web or application container such as Tomcat), it's only the main code (class) that's initially loaded. Any other code (classes) are loaded in dynamically as needed. Where are these classes loaded from? They're ...
Background information
Some modules are available for download as a sample of our material or under an Open Training Notes License for free download from [here].
Topics covered in this module
Selecting which download you need.
Downloading Java.
For Linux / Unix.
For Windows.
Installing Java.
For Linux / Unix.
For Windows.
Initial Testing - the SDK.
For Linux / Unix.
For Windows.
Sourcing and installing documentation.
Downloading the Enterprise edition and server.
Initial Testing - J2EE.
Setting up a permanent CLASSPATH.
Complete learning
If you are looking for a complete course and not just a information on a single subject, visit our Listing and schedule page.

Well House Consultants specialise in training courses in Linux and LAMP,Ruby, Lua, Python, Perl, PHP, and MySQL. We run Private Courses throughout the UK (and beyond for longer courses), and Public Courses at our training centre in Melksham, Wiltshire, England. It's surprisingly cost effective to come on our public courses - even if you live in a different country or continent to us.

We have a technical library of over 700 books on the subjects on which we teach. These books are available for reference at our training centre.

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