Create directory using pure java(urgent)

i am doing a project in java.
my program asks user for directory to create .
the program will check whether it already exists if not
it will create a new directory
i don't know what function can be used for this.
someone pleae hepl me put
i have to submit the project by wed.
today is sun

i think that u shud check file class in java api..... i do remember that there is a method to create files, in that class.... as java treats files and folders simultaneously.... so by changing some of the parameters u may be able to create a directory... just check the API

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------- cut here -------
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------- end cut --------
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Create directory using pure java(urgent)

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