求改一下 看哪里出错了

要求是读取d盘中h.txt文件中的数，然后按照10个数一行输出到hh.txt
看看这个那里不行   或者帮忙重编一个
package com.szf;

import
import
import
import
import
import
import
import

public class CopyOftest2 {

    public static void main(String[] args) {
        readTxtFile();
        // writeFile("");
        // writeFile2();
    }

    /**
     * 功能：Java读取txt文件的内容 步骤：1：先获得文件句柄 2：获得文件句柄当做是输入一个字节码流，需要对这个输入流进行读取
     * 3：读取到输入流后，需要读取生成字节流 4：一行一行的输出。readline()。 备注：需要考虑的是异常情况
     * 4: 将数字格式化排列为10个一行  写入另一个文本中
     * @param filePath
     */
    public static void readTxtFile() {
        try {
            String encoding = "gbk";
            File file = new File("d:/h.txt");
            if (file.isFile() && file.exists()) { // 判断文件是否存在
                InputStreamReader read = new InputStreamReader(
                        new FileInputStream(file), encoding);// 考虑到编码格式
                BufferedReader bufferedReader = new BufferedReader(read);
                String line = null;
                StringBuffer ss = new StringBuffer();
                StringBuffer ss2 = new StringBuffer();
                String line2 = "";
                int flag = 0;// 标记位 记录当前读到第几行
                while ((line = bufferedReader.readLine()) != null) {// 每次读取一行
                    flag++;
                    line2 = line2 + line.toString();// 将两行连成一行

                    if (flag == 2) {
                        System.out.println("======" + line2);
                        String[] x = line2.split("#");
                        for (int j = 0; j < x.length; j++) {
                            ss2.append(x[j]).append("#");
                        }
                        writeFilexx(ss2.toString());
                        
                        line2 = "";
                        flag = 0;
                    }

                }

                read.close();

            } else {
                System.out.println("找不到指定的文件");
            }
        } catch (Exception e) {
            System.out.println("读取文件内容出错");
            e.printStackTrace();
        }

    }

    public static void writeFilexx(String data) {
        try {
            FileWriter out = new FileWriter("d:/hh.txt", true);

            PrintWriter pw = new PrintWriter(out);
            pw.println(data);

            pw.close();
            out.close();
        
        } catch (IOException e) {

            e.printStackTrace();
        }

    }

   

}