<dependency>
<groupId>com.opencsv</groupId>
<artifactId>opencsv</artifactId>
<version>5.5.2</version>
</dependency>
import com.opencsv.CSVReader;
import java.io.FileReader;
import java.util.List;
public class CSVReaderExample {
public static void main(String[] args) {
try (CSVReader reader = new CSVReader(new FileReader("data.csv"))) {
List<String[]> rows = reader.readAll();
for (String[] row : rows) {
for (String cell : row) {
System.out.print(cell + " ");
}
System.out.println();
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
import com.opencsv.CSVWriter;
import java.io.FileWriter;
public class CSVWriterExample {
public static void main(String[] args) {
try (CSVWriter writer = new CSVWriter(new FileWriter("output.csv"))) {
String[] header = {"Name", "Age", "Country"};
String[] row1 = {"John", "25", "USA"};
String[] row2 = {"Alice", "30", "Canada"};
writer.writeNext(header);
writer.writeNext(row1);
writer.writeNext(row2);
} catch (Exception e) {
e.printStackTrace();
}
}
}
