불러들인csv파일에 내용추가하기

게시물 수정 , 삭제는 로그인 필요

csv 파일에 내용을 추가하고싶은데 제가 원하는건 이게아니고 아래처럼 내용을 추가하고싶습니다 어떤 코드를 써야할까요 

public class WriterTest2 {

public static void main(String[] args) throws NumberFormatException, IOException {

BufferedWriter bw = null;

try {

//List<List<String>> records = new ArrayList<>();

bw = Files.newBufferedWriter(Paths.get("C:\\works\\test1.csv"),Charset.forName("UTF-8"));

 

    List<List<String>> allDate = readCSV();

    

    for(List<String> newLine : allDate) {

   

    List<String> list = newLine;

    for(String data:list) {

    bw.write(data);

    bw.write(",");

   

//    

    }

    bw.write("nuiteprice");

    bw.write("number");

    bw.newLine();

   

    }

   

}catch(FileNotFoundException e) {

e.printStackTrace();

}catch(IOException e) {

e.printStackTrace();

}finally {

try {

if(bw !=null) {

bw.close();

}

}catch(IOException e) {

e.printStackTrace();

}

}

}

public static List<List<String>> readCSV(){

List<List<String>> records = new ArrayList<>();

try {

try (BufferedReader br = new BufferedReader(new FileReader("C:\\works\\test.csv"))) {

    // BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(null, "C:\\works\\test.csv"));

String line =" ";

    List<String> list = new ArrayList<String>();

    

    while ((line = br.readLine()) != null) {

    String[] values = line.split(",",-1);

    list =Arrays.asList(values);

        records.add(list);

      }

    }

    for(int i=0; i<records.size(); i++) {

   

    for(int j=0; j<records.get(i).size(); j++ ) {

    System.out.print("\t");

    if(records.get(i).get(j).isEmpty()) {

    System.out.print("미설정");

    }

    System.out.print(records.get(i).get(j));

    //(4,3),(5,0)

   

    }

    System.out.println();

    }

}catch(Exception e) {

System.out.println("www");

}

return records;

}

}