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mock question  RSS feed

 
yamini nadella
Ranch Hand
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A computer assembler assembles computer with the combination of 1 CPU, one memory size, one hard disk. available types of cpu's are 1GHz,2GHz,3GHz.
available hard disks are 40GB,80GB,100GB. available memory sizes are 1GB,2GB,3GB.
customer has to choose one cpu,memory & hard disk etc.

what pattern is suitable for this?

answer is builder pattern.
why builder why not abstract factory?
 
Pavel Grushetzky
Greenhorn
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Because person assembles whole from parts - that's what builder for.

Abstract factory is about creating families of related products. It could fit here if, for example, statement had mentioned accessory compatibility issues.
 
It is sorta covered in the JavaRanch Style Guide.
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