On 12/17/2010 5:14 AM, Parshwa Murdia wrote:
On Fri, Dec 17, 2010 at 4:28 PM, Toxico Nimbus <t...@free.fr
<mailto:t...@free.fr>> wrote:
- Don't use something you couldn't create yourself
Toxico Nimbus
How you imagine could a beginner create something which he is trying
to learn? Could you do that by the time you started learning?
I suspect Toxico is speaking about a particular challenge that has come
up with educators teaching particularly OO languages as first
languages. Specifically, because of the strong encapsulation and data
hiding techniques present in these languages, a wide ecosystem of
reusable class libraries has surrounded them - to the point where
programming in these languages is often seen as an integration effort -
trying to integrate a series of class libraries. As a result, a certain
segment of the programming community has lost understanding of huge
swaths of the practice - particularly foundational algorithms - such as
searching and sorting algs - because learning programmers just use
rather than implement.
When you are reusing code (like a sorting or search algorithm, or a hash
tree class in Java), think about whether you understand (at least in
basic terms) how that code is likely implemented. If you were given the
task of implementing a hash table (because java.util.HashMap was
unavailable to you), would you be able to? Would you know where to
start? Would you be able to describe the performance characteristics of
a search, insert or delete using this structure? These are important
questions that you should learn to answer...
PK
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