讀取 csv 檔,輸出 arraylist

讀取 csv 檔 ,輸出成 ArrayList

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
public class ReadCSVtoArrayList {
    /**
     * Read csv file
     * @param csvpath path of csv file
     * @return ArrayList, element is data of column
     */
    public static ArrayList<ArrayList> readCSVToArrayList(String csvpath) {
        ArrayList<ArrayList> dataAL = new ArrayList<ArrayList>();
        BufferedReader reader;
        try {
            reader = new BufferedReader(new FileReader(csvpath));
            reader.readLine();// read first line in csv
            String line = null;
            while ((line = reader.readLine()) != null) {
                ArrayList<String> ticketStr = new ArrayList<String>();
                String item[] = line.split(",");
                ticketStr.clear();
                for(int i=0; i<item.length; i++){
                    ticketStr.add(i, item[i]);
                }
                dataAL.add(ticketStr);
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return dataAL;
    }
}

接著就能操作 ArrayList 中的資料,完成需要的功能