Fluffiness Of File Formats

This essay is about a suggested student project in Java programming. This essay gives a rough overview of how it might work. It does not describe an actual complete program. I have no source, object, specifications, file layouts or anything else useful to implementing this project. Everything I have to say to help you with this project is written below. I am not prepared to help you implement it; I have too many other projects of my own.

I do contract work for a living, which could include writing a program such as this. However, 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 any way you please.

The intent of this project is to compare how space-efficient, compact various file formats are. I think you will discover XML is absurdly fluffy compared with the alternatives. This is a project suitable for a rank beginner.

To implement it, you create an array of sample Objects in RAM. The sample class would have a variety of data types, e.g. some ints, some longs, some Dates, some Strings.

You then write this data out in various formats: ObjectOutputStream, DataOutputStream, FileWriter, CSV, XML, ASN.1 etc.

Then you measure the size of each of the output files and report on just how fluffy each format is.

You don’t need to write much code. The FileIO Amanuensis will generate code for ObjectOutputStream, DataOutputStream, and FileWriter. For CSV, see CSVWriter. For XML, see XML built-in classes. For ASN.1 see ASN.1.

For a simpler project, leave out XML and ASN.1. For a more difficult project, add extra formats, e.g. SQL databases from various vendors.

People can plop in their own datastructures into your framework to see the difference in their own projects. Leave instructions in the code, and structure the code, to make this easy.

ASN.1
CSVWriter
FileIO Amanuensis
XML built-in classes

	Please email your feedback for publication, errors, omissions, broken/redirected link reports and suggestions to improve this page to Roedy Green :
	Canadian Mind Products
	mindprod.com IP:[65.110.21.43]
	Your face IP:[38.103.63.18]	The information on this page is for non-military use only.
	You are visitor number 11.	Military use includes use by defence contractors.
	You can get a fresh copy of this page from:	or possibly from your local J: drive (Java virtual drive/Mindprod website mirror)
	http://mindprod.com/project/fluffiness.html	J:\mindprod\project\fluffiness.html