The main practical use for a file descriptor is to create a FileInputStream or FileOutputStream to contain it. Applications should not create their own file descriptors. Added in JDK1.0. Java documentation for java.io.FileDescriptor.Portions of this page are modifications based on work created ...
如果传入"C:\Temp\documentation.new\README"则会返回"new\README"。但这不是我们想要的结果。 3.复制文件 1publicvoidcopyFile()throwsIOException{2FileInputStream iStream =newFileInputStream(newFile("a.txt"));3FileOutputStream oStream =newFileOutputStream(newFile("acopy.txt"));4byte[] bytes =ne...
A file output stream is an output stream for writing data to a File or to a FileDescriptor.C# 复制 [Android.Runtime.Register("java/io/FileOutputStream", DoNotGenerateAcw=true)] public class FileOutputStream : Java.IO.OutputStream, IDisposable, Java.Interop.IJavaPeerable...
The java.nio.file package defines interfaces and classes for the Java virtual machine to access files, file attributes, and file systems. This API may be used to overcome many of the limitations of the java.io.File class. The toPath method may be used to obtain a Path that uses the abs...
Returns the file system roots. On Android and other Unix systems, there is a single root,/. Java documentation forjava.io.File.listRoots(). Portions of this page are modifications based on work created and shared by theAndroid Open Source Projectand used according to terms described in theCre...
A handle to the standard input stream. Usually, this file descriptor is not used directly, but rather via the input stream known asSystem.in. Java documentation forjava.io.FileDescriptor.in. Portions of this page are modifications based on work created and shared by theAndroid Open Source Projec...
<property name="log-file" value="renaming-log.xml"/> <property name="random-seed" value="type anything here"/> <!-- String encryption --> <property name="string-encryption" value="enable"/> <property name="string-encryption-type" value="fast"/> <property name="string-encryption-versi...
FileReader(StringfileName) Creates a newFileReader, given the name of the file to read from. Method Summary Methods inherited from class java.io.InputStreamReader close,getEncoding,read,read,ready Methods inherited from class java.io.Reader
java.io涉及到的class如下: 涉及到的interface如下: 可以发现在java.io中包含了非常多用于处理byte和character的库 (如果不清楚区别可见What is the Difference between byte stream and Character streams)。我们首先来看看最重要的File库 FIle库 虽然java.io中大部分的库是在流的基础上操作,但File类不是。它负责直...
一般Java开发人员所说的OSGI是指由OSGi Alliance组织制定的Java模块化规范,该规范的核心部分是一个框架,其中定义了应用程序的生命周期模式和服务注册。基于这个框架定义了大量的OSGi服务:日志、配置管理,HTTP服务(运行Servlet)、XML解析、设备访问、软件包管理、许可管理、用户管理、IO连接、Jini和UPnP等。