Java's I/O streams provide standardized ways to read and write data. Any object representing a mutable data source in Java exposes methods for reading and writing its data as a stream.

What makes a CSV file unique is the way its content is organized. Here's what you need to know about CSV files and how to use them.

How to Write a Data Table to a CSV File. The Comma-Separated Values file format is a standard format for packaging data to share among normally incompatible computer applications.