我认为这应该对您有所帮助。基本上，您的CSV杂乱无章。下面是我安排您的csv的代码
public static void main(String[] args) throws FileNotFoundException, UnsupportedEncodingException { PrintWriter writer = new PrintWriter("file.txt", "UTF-8"); try{ //Create object of FileReader FileReader inputFile = new FileReader("csv.txt"); //Instantiate the BufferedReader Class BufferedReader bufferReader = new BufferedReader(inputFile); //Variable to hold the one line data String line; String date="";String org ="";String student =""; // Read file line by line and print on the console while ((line = bufferReader.readLine()) != null) { if(line.contains("1.")){if(date!="" || org!=""){ writer.println(date+","+org+","+student); student =""; } date = line.substring(2); }else if(line.contains("2.")){ org = line.substring(2);}else{ line = "("+line+")"; student += line+","; } System.out.println(line); } writer.println(date+","+org+","+student); //Close the buffer reader bufferReader.close(); }catch(Exception e){ System.out.println("Error while reading file line by line:" + e.getMessage()); } writer.close(); }这是您将为此获得的输出
10/09/2016, cycling club,(3. sam, 1000, oklahoma),( henry, 1001, california),( bill, 1002, NY), 11/15/2016, swimming club,(3. jane, 9001, georgia),( elizabeth, 9002, lousiana),
我正在从csv.txt中读取文件。while循环遍历文本文件的每一行。所有字段都存储在变量中。下一个日期到来时，我将它们全部写入输出文件。在while循环终止后，csv的最后一行被写入文件。
