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For 2023 - we are now fully retired from IT training.
We have made many, many friends over 25 years of teaching about Python, Tcl, Perl, PHP, Lua, Java, C and C++ - and MySQL, Linux and Solaris/SunOS too. Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own risk.

Lisa and I (Graham) now live in what was our training centre in Melksham - happy to meet with former delegates here - but do check ahead before coming round. We are far from inactive - rather, enjoying the times that we are retired but still healthy enough in mind and body to be active!

I am also active in many other area and still look after a lot of web sites - you can find an index ((here))

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Java module J809
Exercises, examples and other material relating to training module J809. This topic is presented on public course Java Programming for the Web

The information held in an object can be spread all around the data area of your Java program. If you want to save an object to a file, or transmit it over a connection to another computer, you'll need to be able to pick out the salient information and assemble it into a series of bytes, a process known as "serialization".

Articles and tips on this subjectupdated
2435Serialization - storing and reloading objects
In most of the languages we teach, data is held in memory on a "heap" with a "symbol table" holding the names of the variables, where they are stored, and what type of information the (currently) contain. When you write simple variables out to a file (or the screen) functions like print or puts (Tcl) ...
1149Turning objects into something you can store - Pickling (Python)
If you're working with objects in an OO language and you want to transfer them to another computer ... or simple save them from the current application for reloading into that application or another one on the same computer later on, you need to serialize the objects. Data within OO programming languages ...
1067Serialization in Java - all layers required!
If you want to subject a delicate piece of equipment to an extreme of temperture for a prolonged period, it's no good just putting it in a box, even if that box CAN withstand the temperature extreme. No - you need to have piece of temperature tolerant equipment AND a tempertaure tolerant box if you're ...
Examples from our training material
Bead.java   The Serialiable class itself
Drawing.java   A class managing a vector of selializable objects
kingfisher.java   Application to demonstrate serialiasble objects
mousehandler.java   Serialiazable demo mouse handler class
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
Saving objects to a file.
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 Java,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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