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java.lang.Objectjava.io.InputStream
com.sun.xfile.XFileInputStream
public class XFileInputStream
An XFile input stream is an input stream for reading data from an
XFile
.
Constructor Summary | |
---|---|
XFileInputStream(java.lang.String name)
Creates an input file stream to read from a file with the specified name. |
|
XFileInputStream(XFile xfile)
Creates an input file stream to read from the specified XFile object. |
Method Summary | |
---|---|
int |
available()
Returns the number of bytes yet to be read from this file. |
void |
close()
Closes this file input stream and releases any system resources associated with the stream. |
int |
read()
Reads a byte of data from this XFile. |
int |
read(byte[] b)
Reads up to b.length bytes of data from this file
into an array of bytes. |
int |
read(byte[] b,
int off,
int len)
Reads up to len bytes of data from this file
into an array of bytes. |
long |
skip(long n)
Skips over and discards n bytes of data from the
file. |
Methods inherited from class java.io.InputStream |
---|
mark, markSupported, reset |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public XFileInputStream(XFile xfile) throws java.io.IOException
XFile
object.
xfile
- the file to be opened for reading.
java.io.FileNotFoundException
- if the file is
not found.
java.io.IOException
public XFileInputStream(java.lang.String name) throws java.io.IOException
name
- the system-dependent file name.
java.io.FileNotFoundException
- if the file is
not found.
java.io.IOException
Method Detail |
---|
public int read() throws java.io.IOException
read
in class java.io.InputStream
-1
if the end of the file is reached.
java.io.IOException
- if an I/O error occurs.public int read(byte[] b) throws java.io.IOException
b.length
bytes of data from this file
into an array of bytes.
read
in class java.io.InputStream
b
- the buffer into which the data is read.
-1
if there is no more data because
the end of the file has been reached.
java.io.IOException
- if an I/O error occurs.public int read(byte[] b, int off, int len) throws java.io.IOException
len
bytes of data from this file
into an array of bytes.
read
in class java.io.InputStream
b
- the buffer into which the data is read.off
- the start offset of the data.len
- the maximum number of bytes read.
-1
if there is no more data because
the end of the file has been reached.
java.io.IOException
- if an I/O error occurs.public int available() throws java.io.IOException
available
in class java.io.InputStream
java.io.IOException
- if an I/O error occurs.public long skip(long n) throws java.io.IOException
n
bytes of data from the
file.
The skip
method may, for a variety of
reasons, end up skipping over some smaller number of bytes,
possibly 0
.
The actual number of bytes skipped is returned.
skip
in class java.io.InputStream
n
- the number of bytes to be skipped.
java.io.IOException
- if an I/O error occurs.public void close() throws java.io.IOException
close
in interface java.io.Closeable
close
in class java.io.InputStream
java.io.IOException
- if an I/O error occurs.
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