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3256 - Displaying a directory or file system tree - Linux
How can you display your whole file tree on a Linux system? With the tree command! |-- abo |-- access_log |-- adarrivals.txt |-- adhoc_private |   |-- adhoc.conf |   |-- businesslogic.inc |   |-- page_layout.htp |&nbs ....

3255 - Process every member of an array, and sort an array - Ruby
If you're wanting to process every member of an array, you've a choice ... you can write a loop to step through the key of each member, you can write a loop to step through each member itself, or you can call a method which operates on the array as a whole (i.e. the loop is hidden within a method. ....

3254 - Multiple inputs, multiple out, ruby functions
Has it ever struck you as curious that in many languages, you can pass as many parameters into a function as you like, but you can only return one? Well - that's many language not all - in Ruby you can return a whole series of values in a comma separated list, and place each into its own variable. ....

3253 - Is this number between? Does this list include? - Ruby
There's often a requirement in a program to see if one value is between two others, and in most languages you'll write that as as double condition:   if (n >= 5 && n <= 8) printf("Yesssss!\n"); in C or C++, for example. Some languages give you further options / methods you ....

3252 - C++ - unknown array size, unknown object type. Help!
There are time when you're writing a program where you say "I don't know". • I don't know how many records / object I'm going to read from a data file into an array - so I can't set the size of my array • I don't know what sort of object I'll be creating from a line I've read from a da ....

3251 - C++ - objects that are based on other objects, saving coding and adding robustness
In a previous article ([here]), I talked about how we introduce the basic concepts of classes, methods and objects on our C++ courses. I'm now going to give you some links to the next series of example which I wrote during that same course. Having covered object basics, we moved on to look at relat ....

3250 - C++ - how we teach the language and the concepts behind the language
When I'm teaching an object oriented language such as C++, I like to write code and demonstrate from scratch to my class, getting them to 'feed' me with application data and information so that I can show them how programs are really developed using the OO approach - both in general, and in the spec ....

3249 - Events - Spring and Early Summer 2011 in Melksham
26th April - "Melksham - the way forward?" - sponsored by the Melksham Chamber of Commerce - [link] 12th May - Area Board (younger people's meeting) - [link] 21st May - Komix opens - [link] 23rd May - ASDA's opening day - [link] 24th May - Chamber of Commerce AGM - [link] 28th May - Baby Contes ....

3248 - What have these pictures in common?
Here are ten photos. They have something in common; have a look through them and see if you can work out what it is. Each of them has a link so that you can enlarge it, in a new window, up to four times (in area) its current size. Have you any thoughts as to what these have i ....

3247 - Light and dark at Green Park
This evening, at Green Park Station, Bath ... for a meeting of the Bath Railway Society addressed by Tim Pearce of the Go Cooperative ... trading as GoCo ad from their June AGM. Tim told an audience which was largely new to GoCo about the organisation and it's co-operative setup, policy and ethos, ....

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