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Deleter, Deletes Files with Wildcards


This essay does not describe an existing computer program, just one that should exist. This essay is about a suggested student project in Java programming. This essay gives a rough overview of how it might work. I have no source, object, specifications, file layouts or anything else useful to implementing this project. Everything I have prepared to help you is right here.

This project outline is not like the artificial, tidy little problems you are spoon-fed in school, when all the facts you need are included, nothing extraneous is mentioned, the answer is fully specified, along with hints to nudge you toward a single expected canonical solution. This project is much more like the real world of messy problems where it is up to you to fully the define the end point, or a series of ever more difficult versions of this project and research the information yourself to solve them.

Everything I have to say to help you with this project is written below. I am not prepared to help you implement it; or give you any additional materials. I have too many other projects of my own.

Though I am a programmer by profession, I don’t do people’s homework for them. That just robs them of an education.

You have my full permission to implement this project in any way you please and to keep all the profits from your endeavour.

Please do not email me about this project without reading the disclaimer above.

Programs like 4DOS and tcc are painfully slow if you want to sweep your hard disk to remove junk files, e.g. temp?.*, temp.*, *.tmp, C:\temp\*.*. We need a program that will take a set of wildcards (positive and negative) and in one pass over the directories delete the described files. With the /S switch you request recursion over subdirectories. You should also be able to specify multiple directories with wildcards (positive and negative).

I have written a class called Batik which contains all the file scanning and deletion logic you need. I have written a FileName filter that takes postive and negative wildcards. You could use that as a base.

Disk Hogs Project
wildcard project

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