# Java File I/O Sample Data

This folder contains practice files in multiple formats.

Files:
- sample_orders.csv
- sample_orders.json
- sample_orders.parquet
- sample_orders.txt
- sample_orders.xml
- sample_orders.html

Suggested Java practice ideas:
1. Read each file and print all records.
2. Filter orders where category = Electronics.
3. Calculate total sales = quantity * unit_price.
4. Write a new output file with only member customers.
5. Convert one format into another, such as CSV -> JSON.

Notes:
- TXT is pipe-delimited.
- JSON is nested.
- XML uses repeated <order> elements.
- HTML includes a table for parsing or generation practice.
- Parquet is a separate sample file included for binary columnar-file practice.