Java.io.FileDescriptor Class

Introduction

The Java.io.FileDescriptor class instances serve as an opaque handle to the underlying machine-specific structure representing an open file, an open socket, or another source or sink of bytes. Following are the important points about FileDescriptor −

The main practical use for a file descriptor is to create a FileInputStream or FileOutputStream to contain it.

Apppcations should not create their own file descriptors.

Class declaration

Following is the declaration for Java.io.FileDescriptor class −

pubpc final class FileDescriptor
   extends Object

Field

Following are the fields for Java.io.FileDescriptor class −

static FileDescriptor err − This is the handle to the standard error stream.

static FileDescriptor in − This is the handle to the standard input stream.

static FileDescriptor out − This is the handle to the standard output stream.

Class constructors

Class methods

Methods inherited

This class inherits methods from the following classes −

Java.io.Object