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For 2023 (and 2024 ...) - 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 Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own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))
Straight from the .jar

Disc drives have got much faster since my youth ... and processors at have got much much MUCH faster in the same period. So, 30 years ago, we used to compress files to store them on the disc when we knew we weren't likely to keep needing them, but we didn't compress them as a matter of course as we knew it would then take quite a while if we wanted toi get at them.

With the enormous increase in processor speed compared to disc speed, the balance has changed. These days, it's quicker to read a small file from disc and uncompress it than to read a much larger file, so compressionn has become the norm. That's why utilities such as jar compress files by default these days, and why Java applications are often run straight out of the jar.

(written 2007-02-16)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
J801 - Review of Java Basics
  [4394] Philosophy behind object design - and how I applied in to a Java example - (2015-01-14)

A653 - Web Application Deployment - Tomcat - Configuring Web Applications
  [465] Changing Tomcat's web.xml and reloading a web application - (2005-10-15)
  [479] New servlet from old - (2005-10-28)
  [754] tar, jar, war, ear, sar files - (2006-06-10)
  [1006] Apache httpd and Apache Tomcat together tips - (2006-12-24)
  [1074] Java beans and classes, .war and .jar files - (2007-02-10)
  [1192] What are WEB-INF and META-INF directories? - (2007-05-18)
  [1552] Extra public classes in deploying Apache httpd and Tomcat - (2008-02-24)
  [1564] Default file (MiMe types) for Apache httpd and Apache Tomcat - (2008-03-04)
  [1909] javax.servlet cannot be resolved - how to solve - (2008-11-26)
  [2088] Changing the 404 - file not found - page in Tomcat - (2009-03-18)
  [3044] Changing a Servlet - more that just editing and compiling - (2010-11-12)
  [3996] Tips on Tomcat - moving applications around - (2013-02-05)

A502 - Web Application Deployment - Java - Basic Tools
  [1562] Java Compiler - needs all classes, compiles them all too - (2008-03-03)
  [1771] More HowTo diagrams - MySQL, Tomcat and Java - (2008-08-24)
  [2153] Class Loading and Variable Conversion in Java - (2009-05-02)
  [2422] Looking inside Java classes - javap and javadoc - (2009-09-25)
  [2859] Using java, javac, jar, and CLASSPATH - a simple example - (2010-07-07)
  [3151] Disassembling Python and Java - previously compiled code - (2011-01-29)
  [3819] Packing a tar, jar or war file - best practise - (2012-07-26)
  [4412] Java -making sure you have the right versions - (2015-02-02)


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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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