java.io.FileInputStream Class Reference

Inheritance diagram for java.io.FileInputStream:

Public Member Functions
	FileInputStream (File file) throws FileNotFoundException
	FileInputStream (FileDescriptor fd)
	FileInputStream (String path) throws FileNotFoundException
int	available () throws IOException
void	close () throws IOException
final FileDescriptor	getFD () throws IOException
int	read () throws IOException
int	read (byte[] buffer) throws IOException
int	read (byte[] buffer, int byteOffset, int byteCount) throws IOException
long	skip (long byteCount) throws IOException
Public Member Functions inherited from java.io.InputStream
	InputStream ()
int	available () throws IOException
void	close () throws IOException
void	mark (int readlimit)
boolean	markSupported ()
abstract int	read () throws IOException
int	read (byte[] buffer) throws IOException
int	read (byte[] buffer, int offset, int length) throws IOException
synchronized void	reset () throws IOException
long	skip (long byteCount) throws IOException

Protected Member Functions
void	finalize () throws IOException

Detailed Description

An input stream that reads bytes from a file.

File file = ...
InputStream in = null;
try {
  in = new BufferedInputStream(new FileInputStream(file));
  ...
} finally {
  if (in != null) {
    in.close();
  }
}
 

This stream is not buffered. Most callers should wrap this stream with a BufferedInputStream.

Use FileReader to read characters, as opposed to bytes, from a file.

See also

BufferedInputStream

FileOutputStream

Constructor & Destructor Documentation

FileInputStream() [1/3]

java.io.FileInputStream.FileInputStream ( File  file ) throws FileNotFoundException

inline

Constructs a new

FileInputStream 

that reads from

file 

.

Parameters

file	the file from which this stream reads.

Exceptions

FileNotFoundException

if file does not exist.

FileInputStream() [2/3]

java.io.FileInputStream.FileInputStream ( FileDescriptor  fd )

inline

Constructs a new

FileInputStream 

that reads from

fd 

.

Parameters

fd	the FileDescriptor from which this stream reads.

Exceptions

NullPointerException

if fd is null .

FileInputStream() [3/3]

java.io.FileInputStream.FileInputStream ( String  path ) throws FileNotFoundException

inline

Equivalent to

new FileInputStream(new File(path)) 

.

Member Function Documentation

finalize()

void java.io.FileInputStream.finalize ( ) throws IOException

inlineprotected

Ensures that all resources for this stream are released when it is about to be garbage collected.

Exceptions

IOException

if an error occurs attempting to finalize this stream.

getFD()

final FileDescriptor java.io.FileInputStream.getFD ( ) throws IOException

inline

Returns the underlying file descriptor.

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The documentation for this class was generated from the following file:

• src/java/io/FileInputStream.java