java 写文件

/** * 写文件 * @param string * @param toFile */public static void writetoFile(String string,String toFile){RandomAccessFile rf = null;   try {System.out.println("续写状态，写文件开始>>>>>>>");rf = new RandomAccessFile(toFile,"rw");    rf.seek(rf.length());    rf.writeBytes(string+"\n");    System.out.println("写文件结束>>>>>>>，文件名为："+toFile);   } catch (IOException e) {   System.out.println("写入文件失败：Error ---->"+e.getMessage());   }finally{   if(rf!=null){   try {rf.close();} catch (IOException e) {System.out.println("关闭rf失败：Error ---->"+e.getMessage());}   }   }}