<dependency>
<groupId>com.opencsv</groupId>
<artifactId>opencsv</artifactId>
<version>5.5.1</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) {
String csvFile = "path/to/input.csv";
try {
CSVReader reader = new CSVReader(new FileReader(csvFile));
List<String[]> lines = reader.readAll();
for (String[] line : lines) {
for (String value : line) {
System.out.print(value + ",");
}
System.out.println();
}
reader.close();
} 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) {
String csvFile = "path/to/output.csv";
try {
CSVWriter writer = new CSVWriter(new FileWriter(csvFile));
String[] header = {"Column 1", "Column 2", "Column 3"};
writer.writeNext(header);
String[] data1 = {"Value 1", "Value 2", "Value 3"};
String[] data2 = {"Value 4", "Value 5", "Value 6"};
writer.writeNext(data1);
writer.writeNext(data2);
writer.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
