CSV Factory

CSV Factory is a Java program which generates a CSV file with data that is selected at random. It uses different classes and methods to generate rows of data at random and write them to a CSV file.

Classes

CSVConstants

This class holds the constant values used for generating the CSV data. It contains arrays of first names, last names, reasons for appointment, and department names.

CsvRow

This class represents a single row in the CSV data. It holds the values for first name, last name, reason for appointment, department, and date.

CsvRowGenerator

This class is responsible for generating random CsvRow objects. It uses the RandomSelector class to select random values from the arrays in the CSVConstants class. The date is randomly generated within the current month.

CsvWriter

This class writes the generated CsvRow objects to a CSV file. You can specify the file path when calling the writeCsv method.

RandomSelector

This class has a static method selectRandom that selects a random element from a given array.

Application

This is the main class that ties everything together. It generates a specified number of CsvRow objects, then writes them to a CSV file.

Usage

public class Application {
    public static void main(String[] args) {
        CsvRowGenerator generator = new CsvRowGenerator();
        CsvWriter writer = new CsvWriter();

        List<CsvRow> rows = new ArrayList<>();
        for (int i = 0; i < 100; i++) {
            rows.add(generator.generateRandomRow());
        }

        // note: this will throw java.io.FileNotFoundException error if the file path is not absolute
        try {
            writer.writeCsv(rows, "add-absolute-path/csv-factory.csv");
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
    }
}

In the Application class, you can adjust the number of rows to be generated and the file path where the CSV file will be saved. Make sure to provide an absolute path to prevent a FileNotFoundException.

Important Notes

• The CsvRowGenerator class generates a random date in the current month for each row.
• The department field in the CsvRow class is only filled if the reason for the appointment is "Appointment". Otherwise, it is left null.
• The CsvWriter class handles null department fields gracefully by writing an empty string in the CSV file.

Dependencies

The project uses the org.jetbrains.annotations.NotNull annotation, so you'll need to include the JetBrains annotations library in your project.

Build & Run

Compile and run the Application class. Make sure to update the file path in the Application class before running the program. The CSV file will be written to the specified location.

License

This project is licensed under the terms of the MIT license.

This is a re-upload from one of my exercises at BeCode