1、过程
(1)既可以充当一个输入流, 也可以冲淡一个输出流
(2)支持从文件的开头读取、写入
(3)支持从任意位置的读取、写入(插入)
(4)RandomAccessFile类需要指定的访问模式:
2、实例
public void RandomAccessFile(String src, String srcMode, String dest, String destMode) { RandomAccessFile accessFile = null; RandomAccessFile accessFile1 = null; try { accessFile = new RandomAccessFile(new File(src), srcMode); accessFile = new RandomAccessFile(new File(dest), destMode); byte[] bytes = new byte[1024]; int length; while ((length = accessFile.read(bytes)) != -1) { accessFile1.write(bytes, 0, length); } } catch (IOException e) { e.printStackTrace(); } finally { if (accessFile != null) try { accessFile.close(); } catch (IOException e) { e.printStackTrace(); } if (accessFile1 != null) { try { accessFile1.close(); } catch (IOException e) { e.printStackTrace(); } } } }
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