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(); } } } }
以上就是java中randomaccessfile类怎么随机访问的详细内容。