Training, Open Source Programming Languages

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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 Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own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))
Using the lead - passing arrays and other collections in Java

If you're taking the dog for a walk, it's much more lightweight to simply take the lead and have the dog follow than to actually carry the dog. And if you're passing a whole collection of data into a function, it's much more lightweight to pass in the address or reference to the collection than to copy the collection in. And if you do that, you can make alterations from within the function and have those alterations be reflected in the orignal calling code, which is both powerful (if you thing about what youre doing) and dangerous (if you don't).

Source code of an example in Java - [here].
(written 2015-02-16, updated 2015-02-17)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
J705 - Java - Arrays
  [1497] Training Season Starts again! - (2008-01-07)
  [1498] Java is a dynamic language .... (and comparison) - (2008-01-08)
  [1614] When an array is not an array - (2008-04-17)
  [2648] Java arrays - are they true arrays or not? - (2010-02-23)
  [3038] Setting up individual variables, and arrays, in Java - some commented examples - (2010-11-09)
  [3039] Fresh Paint - Java Arrays - (2010-11-09)
  [3118] Arrays of arrays - or 2D arrays. How to program tables. - (2011-01-02)
  [4347] Arrays in Java - an introduction for newcomers - (2014-12-10)
  [4413] Binomial Coefficient (Pascal Triangle) objects in Java - (2015-02-03)


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Java web application for teaching - now with sessions and clustering / load balancing demonstrations
A Java servlet that is also a stand alone program. And a server that is also a web client.
The spirit of Java - delegating to classes
Wind Turbines - beauty or menace?
Using the lead - passing arrays and other collections in Java
Java example - for loop and conditionals from course exercise
FileMaker Day to Unix Time conversion
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Looking Forward - TransWilts Community Rail Partnership and TransWilts CIC
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This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

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