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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 Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own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))
Keyboard reader for Java programming newcomers

I've added a new class of Keyboard Reader for our Java courses [here], for the earlier examples and exercises just after "Hello World". We want to be able to teach people to write a read - calculate - write program early on, but Java inputs require exception handling, and exceptions are objects, and those objects use inheritance, and there's a lot to learn if you wait to read user input until you have learned all these things. Much better to use a function or two. So here's how we open keyboard access and read a line:

  KeyRead source = new KeyRead();
  String said = source.readline();


Previously, we've used static methods to provide a keyboard reader, but we've updated the course now to use an object (a KeyRead) and a method on that object. It means a slightly more complex instruction session early in the course, but it gives us the advantage of being able to refer back to this use in a ouple of chapters when we first introduce objects properly to our delegates.
(written 2014-12-12, updated 2014-12-11)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
J702 - Hello Java World
  [2414] Hello World - a good traditional start to a Java course - (2009-09-22)
  [2859] Using java, javac, jar, and CLASSPATH - a simple example - (2010-07-07)

J713 - Java - More Input and Output
  [1239] End of File on a Java BufferedReader - (2007-06-22)
  [2420] Exceptions in Java - why and how - (2009-09-24)
  [4414] Java - converting an integer to a fixed length string - (2015-02-04)
  [4420] Flexibility in input - read from file, web resource or keyboard - (2015-02-08)

J712 - Java - Exceptions
  [1066] Final, Finally and Finalize - three special words in Java - (2007-02-05)
  [1875] What are exceptions - Python based answer - (2008-11-08)
  [2622] Handling unusual and error conditions - exceptions - (2010-02-03)
  [2862] Fail Safe Error Handling in Java via Exceptions - (2010-07-09)
  [3045] After Course Resources - do we publish sample answers. Example from Java Exceptions module. - (2010-11-13)
  [3048] String handling - from first steps to practical examples - (2010-11-13)
  [4396] Java Utility class - flexible replacement for array. Also cacheing in objects and multiple catch clauses example. - (2015-01-16)


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Some other Articles
Wiltshire Police - assuming someone is guilty just on the say-so of a member of the public?
Celebration pictures, year 1
A long day on the trains, but a rewarding one
A little thing can make a big difference
Keyboard reader for Java programming newcomers
When I am old, what will worry me?
Taking my life in my hands in Swansea
Arrays in Java - an introduction for newcomers
A behaviour driven example of writing a Java program
Incrementing a variable in Java - Pre and Post Increment
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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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