import java.io.File;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import com.fasterxml.jackson.databind.MappingIterator;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.csv.CsvMapper;
import com.fasterxml.jackson.dataformat.csv.CsvSchema;
public class JacksonProgram {
    public static void main(String[] args) throws Exception {
        File input = new File("C:\\Users\\shivamurthym\\Downloads\\FL_insurance_sample\\FL_insurance_sample.csv");
        File output = new File("C:\\Users\\shivamurthym\\data.json");
        List<Map<?, ?>> data = readObjectsFromCsv(input);
        writeAsJson(data, output);
    }
    public static List<Map<?, ?>> readObjectsFromCsv(File file) throws IOException {
        CsvSchema bootstrap = CsvSchema.emptySchema().withHeader();
        CsvMapper csvMapper = new CsvMapper();
        MappingIterator<Map<?, ?>> mappingIterator = csvMapper.reader(Map.class).with(bootstrap).readValues(file);
        return mappingIterator.readAll();
    }
    public static void writeAsJson(List<Map<?, ?>> data, File file) throws IOException {
        ObjectMapper mapper = new ObjectMapper();
        mapper.writeValue(file, data);
    }
}