java - Storing resource files as hashmap like structure -

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i @ minecraft directory , found resources (image, sound, binary-data) store in way hashmap or git repository.

here hashmap alike json files

hashmap json

here actual file system.

actual file system

my question is, why that(benefits?), how , correct term kind of storing resource file strategies?

it called b-tree. pros - constant lookup time.

sorry - small lookup time. log(n) exact. olivier


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