Package Summary Overview Summary

class:FileImageOutputStream [NONE]

All Implemented Interfaces:

Closeable, DataInput, DataOutput, AutoCloseable, ImageInputStream, ImageOutputStream
```
public class FileImageOutputStream
extends ImageOutputStreamImpl
```
An implementation of ImageOutputStream that writes its output directly to a File or RandomAccessFile.

constructor:FileImageOutputStream(java.io.File) [NONE]

FileImageOutputStream
```
public FileImageOutputStream(File f)
                      throws FileNotFoundException,
                             IOException
```
Constructs a FileImageOutputStream that will write to a given File.

Parameters:

f - a File to write to.

Throws:

IllegalArgumentException - if f is null.

SecurityException - if a security manager exists and does not allow write access to the file.

FileNotFoundException - if f does not denote a regular file or it cannot be opened for reading and writing for any other reason.

IOException - if an I/O error occurs.

constructor:FileImageOutputStream(java.io.RandomAccessFile) [NONE]

FileImageOutputStream
```
public FileImageOutputStream(RandomAccessFile raf)
```
Constructs a FileImageOutputStream that will write to a given RandomAccessFile.

Parameters:

raf - a RandomAccessFile to write to.

Throws:

IllegalArgumentException - if raf is null.

method:read() [NONE]

read
```
public int read()
         throws IOException
```
Description copied from class: ImageInputStreamImpl

Reads a single byte from the stream and returns it as an int between 0 and 255. If EOF is reached, -1 is returned.
Subclasses must provide an implementation for this method. The subclass implementation should update the stream position before exiting.

The bit offset within the stream must be reset to zero before the read occurs.

Specified by:

read in interface ImageInputStream

Specified by:

read in class ImageInputStreamImpl

Returns:

the value of the next byte in the stream, or -1 if EOF is reached.

Throws:

IOException - if the stream has been closed.

method:read(byte[], int, int) [NONE]

read
```
public int read(byte[] b,
                int off,
                int len)
         throws IOException
```
Description copied from class: ImageInputStreamImpl

Reads up to len bytes from the stream, and stores them into b starting at index off. If no bytes can be read because the end of the stream has been reached, -1 is returned.
The bit offset within the stream must be reset to zero before the read occurs.

Subclasses must provide an implementation for this method. The subclass implementation should update the stream position before exiting.

Specified by:

read in interface ImageInputStream

Specified by:

read in class ImageInputStreamImpl

Parameters:

b - an array of bytes to be written to.

off - the starting position within b to write to.

len - the maximum number of bytes to read.

Returns:

the number of bytes actually read, or -1 to indicate EOF.

Throws:

IOException - if an I/O error occurs.

method:write(int) [NONE]

write
```
public void write(int b)
           throws IOException
```
Description copied from interface: ImageOutputStream

Writes a single byte to the stream at the current position. The 24 high-order bits of b are ignored.
If the bit offset within the stream is non-zero, the remainder of the current byte is padded with 0s and written out first. The bit offset will be 0 after the write. Implementers can use the flushBits method of ImageOutputStreamImpl to guarantee this.

Specified by:

write in interface DataOutput

Specified by:

write in interface ImageOutputStream

Specified by:

write in class ImageOutputStreamImpl

Parameters:

b - an int whose lower 8 bits are to be written.

Throws:

IOException - if an I/O error occurs.

method:write(byte[], int, int) [NONE]

write
```
public void write(byte[] b,
                  int off,
                  int len)
           throws IOException
```
Description copied from interface: ImageOutputStream

Writes a sequence of bytes to the stream at the current position. If len is 0, nothing is written. The byte b[off] is written first, then the byte b[off + 1] , and so on.
If the bit offset within the stream is non-zero, the remainder of the current byte is padded with 0s and written out first. The bit offset will be 0 after the write. Implementers can use the flushBits method of ImageOutputStreamImpl to guarantee this.

Specified by:

write in interface DataOutput

Specified by:

write in interface ImageOutputStream

Specified by:

write in class ImageOutputStreamImpl

Parameters:

b - an array of bytes to be written.

off - the start offset in the data.

len - the number of bytes to write.

Throws:

IOException - if an I/O error occurs.

method:length() [NONE]

length
```
public long length()
```
Description copied from class: ImageInputStreamImpl

Returns -1L to indicate that the stream has unknown length. Subclasses must override this method to provide actual length information.

Specified by:

length in interface ImageInputStream

Overrides:

length in class ImageInputStreamImpl

Returns:

-1L to indicate unknown length.

method:seek(long) [NONE]

seek
```
public void seek(long pos)
          throws IOException
```
Sets the current stream position and resets the bit offset to 0. It is legal to seeking past the end of the file; an EOFException will be thrown only if a read is performed. The file length will not be increased until a write is performed.

Specified by:

seek in interface ImageInputStream

Overrides:

seek in class ImageInputStreamImpl

Parameters:

pos - a long containing the desired file pointer position.

Throws:

IndexOutOfBoundsException - if pos is smaller than the flushed position.

IOException - if any other I/O error occurs.

method:close() [NONE]

close
```
public void close()
           throws IOException
```
Description copied from interface: ImageInputStream

Closes the stream. Attempts to access a stream that has been closed may result in IOExceptions or incorrect behavior. Calling this method may allow classes implementing this interface to release resources associated with the stream such as memory, disk space, or file descriptors.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface ImageInputStream

Overrides:

close in class ImageInputStreamImpl

Throws:

IOException - if an I/O error occurs.

method:finalize() [NONE]

finalize
```
@Deprecated(since="9")
protected void finalize()
                 throws Throwable
```
Deprecated. The finalize method has been deprecated. Subclasses that override finalize in order to perform cleanup should be modified to use alternative cleanup mechanisms and to remove the overriding finalize method. When overriding the finalize method, its implementation must explicitly ensure that super.finalize() is invoked as described in Object.finalize(). See the specification for Object.finalize() for further information about migration options.

Finalizes this object prior to garbage collection. The close method is called to close any open input source. This method should not be called from application code.

Overrides:

finalize in class ImageInputStreamImpl

Throws:

Throwable - if an error occurs during superclass finalization.

See Also:

WeakReference, PhantomReference