OpenCSV를 사용하여 Java에서 CSV 파일 읽기 및 쓰기

<dependency>
    <groupId>com.opencsv</groupId>
    <artifactId>opencsv</artifactId>
    <version>5.3</version>
</dependency>

import com.opencsv.CSVReader;

import java.io.FileReader;
import java.io.IOException;
import java.util.List;

public class CSVReaderExample {
    public static void main(String[] args) {
        try (CSVReader reader = new CSVReader(new FileReader("data.csv"))) {
            List<String[]> records = reader.readAll();
            for (String[] record : records) {
                for (String field : record) {
                    System.out.print(field + " ");
                }
                System.out.println();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

import com.opencsv.CSVWriter;

import java.io.FileWriter;
import java.io.IOException;

public class CSVWriterExample {
    public static void main(String[] args) {
        try (CSVWriter writer = new CSVWriter(new FileWriter("output.csv"))) {
            String[] record1 = {"John", "Doe", "john.doe@example.com"};
            String[] record2 = {"Jane", "Smith", "jane.smith@example.com"};
            writer.writeNext(record1);
            writer.writeNext(record2);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}