import com.opencsv.CSVReader;
public class CSVReaderExample {
public static void main(String[] args) {
try {
CSVReader reader = new CSVReader(new FileReader("data.csv"));
String[] nextLine;
while ((nextLine = reader.readNext()) != null) {
for (String field : nextLine) {
System.out.print(field + " ");
}
System.out.println();
}
reader.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
import com.opencsv.CSVWriter;
public class CSVWriterExample {
public static void main(String[] args) {
try {
CSVWriter writer = new CSVWriter(new FileWriter("data.csv"));
String[] header = {"Name", "Age", "City"};
writer.writeNext(header);
String[] row1 = {"John", "25", "New York"};
writer.writeNext(row1);
String[] row2 = {"Alice", "30", "Los Angeles"};
writer.writeNext(row2);
writer.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
import com.opencsv.CSVReader;
import com.opencsv.CSVWriter;
import com.opencsv.ICSVParser;
public class CSVConfigExample {
public static void main(String[] args) {
try {
CSVReader reader = new CSVReaderBuilder(new FileReader("data.csv"))
.withCSVParser(new CSVParserBuilder().withSeparator(';').build())
.build();
CSVWriter writer = new CSVWriterBuilder(new FileWriter("data.csv"))
.withCSVParser(new CSVParserBuilder().withSeparator('\t').withQuoteChar('\"').build())
.build();
reader.close();
writer.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
