Question 1

How do I read a CSV file with FastCSV in Java?

Accepted Answer

Use CsvReader.builder().ofCsvRecord(Path.of("file.csv")) and iterate over records, as shown in the quick start example. The API is clean and intuitive for basic reading.

Question 2

FastCSV vs Apache Commons CSV: which should I use?

Accepted Answer

FastCSV is faster and has zero dependencies, ideal for performance-critical apps, while Apache Commons CSV offers more configuration options and is part of a larger ecosystem. Choose based on speed vs flexibility.

Question 3

Does FastCSV support streaming large CSV files?

Accepted Answer

Yes, it processes records iteratively with optimized reading, suitable for streaming scenarios. However, it doesn't explicitly mention low-memory streaming features in the README.

Question 4

Can FastCSV parse CSV files with custom delimiters?

Accepted Answer

FastCSV is RFC 4180 compliant, which standardizes commas as delimiters. It may not support custom delimiters out-of-the-box, so check the documentation for any configuration options.

Question 5

Is FastCSV compatible with Android development?

Accepted Answer

Yes, it supports Android API level 34 and higher, as stated in the features, making it suitable for modern Android apps with CSV processing needs.

Question 6

How to handle CSV headers in FastCSV?

Accepted Answer

Headers can be read as the first record and skipped manually, since FastCSV doesn't provide automatic header mapping. The API requires explicit handling for such cases.

FastCSV

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