RandomAccessFile 指定位置讀取文件

//上次讀取位置 0說明從開頭讀取
lastTimeFileSize = 0;
RandomAccessFile randomFile = null;
File file = new File(url);
randomFile = new RandomAccessFile(file,"r");
randomFile.seek(lastTimeFileSize);String tmp = "";
List<String> logs = new ArrayList<>();
while( (tmp = randomFile.readLine())!= null) {
    system.out.println(new String(tmp.getBytes("ISO8859-1")));
}