In this blog I will give a demo about how to read CSV data from a file. For this purpose I will use Opencsv library. Opencsv is a very simple csv (comma-separated values) parser library for Java.

As part of a bigger side-project I am working on, I investigated several ways to improve the reading- and parsing-performance of CSV-files with specific schemas in Java. Each such line is time-series ...

A typical CSV file looks like this, where each line contains the same sequence of data so any program which needs to read it knows what to expect: Product, Size, Color, Price Shirt, Medium ...