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Friday, October 24, 2014

PragProg - Pragmatic Paranoia

Ref: The Pragmatic Programmer


Tip 30 : You Can't Write Perfect Software

Did that hurt? It shouldn't. Accept it as an axiom of life. Embrace it. Celebrate it. Because perfect software doesn't exist. No one in the brief history of computing has ever written a piece of perfect software. It's unlikely that you'll be the first. And unless you accept this as a fact, you'll end up wasting time and energy chasing an impossible dream.




When To Use Exceptions

it is good practice to check for every possible error—particularly the unexpected ones. However, in practice this can lead to some pretty ugly code; the normal logic of your program can end up being totally obscured by error handling. We've seen code that looks something like the following:


Fortunately, if the programming language supports exceptions, you can rewrite this code in a far neater way:


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