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Take a csv file and generate another after modifications of the first  RSS feed

Vieckov Vieckovsky
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Hi all,
I am a beginner in Java. I have to write the following program. I need to download a csv file, it is best to replace the two-dimensional array, make modifications to it and generate a new file that will have the first part of the name. I have written about this before, and my program did a total mess. Come throw the code I do not know why not write a program from scratch. I do not know how to do it to the output file is not called "wynik.csv" only a copy of the input file, which for example downloading using args [0]. Here is my code:

I will be grateful for any attempt to help because I was stuck in place
It is sorta covered in the JavaRanch Style Guide.
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