datainputstream.html

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public final int <B>readUnsignedShort</B>()
                            throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>See the general contract of the <code>readUnsignedShort</code>
 method of <code>DataInput</code>.
 <p>
 Bytes for this operation are read from the contained
 input stream.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../java/io/DataInput.html#readUnsignedShort()">readUnsignedShort</A></CODE> in interface <CODE><A HREF="../../java/io/DataInput.html">DataInput</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the next two bytes of this input stream, interpreted as an
             unsigned 16-bit integer.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/EOFException.html">EOFException</A></CODE> - if this input stream reaches the end before
               reading two bytes.<DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if an I/O error occurs.</DL>
</DD>
</DL>
<HR>

<A NAME="readChar()"><!-- --></A><H3>
readChar</H3>
<PRE>
public final char <B>readChar</B>()
                    throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>See the general contract of the <code>readChar</code>
 method of <code>DataInput</code>.
 <p>
 Bytes for this operation are read from the contained
 input stream.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../java/io/DataInput.html#readChar()">readChar</A></CODE> in interface <CODE><A HREF="../../java/io/DataInput.html">DataInput</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the next two bytes of this input stream as a Unicode
             character.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/EOFException.html">EOFException</A></CODE> - if this input stream reaches the end before
               reading two bytes.<DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if an I/O error occurs.</DL>
</DD>
</DL>
<HR>

<A NAME="readInt()"><!-- --></A><H3>
readInt</H3>
<PRE>
public final int <B>readInt</B>()
                  throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>See the general contract of the <code>readInt</code>
 method of <code>DataInput</code>.
 <p>
 Bytes for this operation are read from the contained
 input stream.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../java/io/DataInput.html#readInt()">readInt</A></CODE> in interface <CODE><A HREF="../../java/io/DataInput.html">DataInput</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the next four bytes of this input stream, interpreted as an
             <code>int</code>.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/EOFException.html">EOFException</A></CODE> - if this input stream reaches the end before
               reading four bytes.<DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if an I/O error occurs.</DL>
</DD>
</DL>
<HR>

<A NAME="readLong()"><!-- --></A><H3>
readLong</H3>
<PRE>
public final long <B>readLong</B>()
                    throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>See the general contract of the <code>readLong</code>
 method of <code>DataInput</code>.
 <p>
 Bytes for this operation are read from the contained
 input stream.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../java/io/DataInput.html#readLong()">readLong</A></CODE> in interface <CODE><A HREF="../../java/io/DataInput.html">DataInput</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the next eight bytes of this input stream, interpreted as a
             <code>long</code>.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/EOFException.html">EOFException</A></CODE> - if this input stream reaches the end before
               reading eight bytes.<DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if an I/O error occurs.</DL>
</DD>
</DL>
<HR>

<A NAME="readUTF()"><!-- --></A><H3>
readUTF</H3>
<PRE>
public final <A HREF="../../java/lang/String.html">String</A> <B>readUTF</B>()
                     throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>See the general contract of the <code>readUTF</code>
 method of <code>DataInput</code>.
 <p>
 Bytes for this operation are read from the contained
 input stream.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../java/io/DataInput.html#readUTF()">readUTF</A></CODE> in interface <CODE><A HREF="../../java/io/DataInput.html">DataInput</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>a Unicode string.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/EOFException.html">EOFException</A></CODE> - if this input stream reaches the end before
               reading all the bytes.<DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if an I/O error occurs.<DT><B>See Also: </B><DD><A HREF="../../java/io/DataInputStream.html#readUTF(java.io.DataInput)"><CODE>readUTF(java.io.DataInput)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="readUTF(java.io.DataInput)"><!-- --></A><H3>
readUTF</H3>
<PRE>
public static final <A HREF="../../java/lang/String.html">String</A> <B>readUTF</B>(<A HREF="../../java/io/DataInput.html">DataInput</A>&nbsp;in)
                            throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Reads from the
 stream <code>in</code> a representation
 of a Unicode  character string encoded in
 Java modified UTF-8 format; this string
 of characters  is then returned as a <code>String</code>.
 The details of the modified UTF-8 representation
 are  exactly the same as for the <code>readUTF</code>
 method of <code>DataInput</code>.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>in</CODE> - a data input stream.<DT><B>Returns:</B><DD>a Unicode string.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/EOFException.html">EOFException</A></CODE> - if the input stream reaches the end
             before all the bytes.<DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if an I/O error occurs.<DD><CODE><A HREF="../../java/io/UTFDataFormatException.html">UTFDataFormatException</A></CODE> - if the bytes do not represent a
             valid UTF-8 encoding of a Unicode string.<DT><B>See Also: </B><DD><A HREF="../../java/io/DataInputStream.html#readUnsignedShort()"><CODE>readUnsignedShort()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="skip(long)"><!-- --></A><H3>
skip</H3>
<PRE>
public long <B>skip</B>(long&nbsp;n)
          throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Skips over and discards <code>n</code> bytes of data from the
 input stream. The <code>skip</code> method may, for a variety of
 reasons, end up skipping over some smaller number of bytes,
 possibly <code>0</code>. The actual number of bytes skipped is
 returned.
 <p>
 This method
 simply performs <code>in.skip(n)</code>.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../java/io/InputStream.html#skip(long)">skip</A></CODE> in class <CODE><A HREF="../../java/io/InputStream.html">InputStream</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>n</CODE> - the number of bytes to be skipped.<DT><B>Returns:</B><DD>the actual number of bytes skipped.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if an I/O error occurs.</DL>
</DD>
</DL>
<HR>

<A NAME="available()"><!-- --></A><H3>
available</H3>
<PRE>
public int <B>available</B>()
              throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Returns the number of bytes that can be read from this input
 stream without blocking.
 <p>
 This method
 simply performs <code>in.available(n)</code> and
 returns the result.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../java/io/InputStream.html#available()">available</A></CODE> in class <CODE><A HREF="../../java/io/InputStream.html">InputStream</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the number of bytes that can be read from the input stream
             without blocking.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if an I/O error occurs.</DL>
</DD>
</DL>
<HR>

<A NAME="close()"><!-- --></A><H3>
close</H3>
<PRE>
public void <B>close</B>()
           throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Closes this input stream and releases any system resources
 associated with the stream.
 This
 method simply performs <code>in.close()</code>.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../java/io/InputStream.html#close()">close</A></CODE> in class <CODE><A HREF="../../java/io/InputStream.html">InputStream</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if an I/O error occurs.</DL>
</DD>
</DL>
<HR>

<A NAME="mark(int)"><!-- --></A><H3>
mark</H3>
<PRE>
public void <B>mark</B>(int&nbsp;readlimit)</PRE>
<DL>
<DD>Marks the current position in this input stream. A subsequent
 call to the <code>reset</code> method repositions this stream at
 the last marked position so that subsequent reads re-read the same bytes.
 <p>
 The <code>readlimit</code> argument tells this input stream to
 allow that many bytes to be read before the mark position gets
 invalidated.
 <p>
 This method simply performs <code>in.mark(readlimit)</code>.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../java/io/InputStream.html#mark(int)">mark</A></CODE> in class <CODE><A HREF="../../java/io/InputStream.html">InputStream</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>readlimit</CODE> - the maximum limit of bytes that can be read before
                      the mark position becomes invalid.</DL>
</DD>
</DL>
<HR>

<A NAME="reset()"><!-- --></A><H3>
reset</H3>
<PRE>
public void <B>reset</B>()
           throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Repositions this stream to the position at the time the
 <code>mark</code> method was last called on this input stream.
 <p>
 This method
 simply performs <code>in.reset()</code>.
 <p>
 Stream marks are intended to be used in
 situations where you need to read ahead a little to see what's in
 the stream. Often this is most easily done by invoking some
 general parser. If the stream is of the type handled by the
 parse, it just chugs along happily. If the stream is not of
 that type, the parser should toss an exception when it fails.
 If this happens within readlimit bytes, it allows the outer
 code to reset the stream and try another parser.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../java/io/InputStream.html#reset()">reset</A></CODE> in class <CODE><A HREF="../../java/io/InputStream.html">InputStream</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if the stream has not been marked or if the
             mark has been invalidated.</DL>
</DD>
</DL>
<HR>

<A NAME="markSupported()"><!-- --></A><H3>
markSupported</H3>
<PRE>
public boolean <B>markSupported</B>()</PRE>
<DL>
<DD>Tests if this input stream supports the <code>mark</code>
 and <code>reset</code> methods.
 This method
 simply performs <code>in.markSupported()</code>.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../java/io/InputStream.html#markSupported()">markSupported</A></CODE> in class <CODE><A HREF="../../java/io/InputStream.html">InputStream</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD><code>true</code> if this stream type supports the
          <code>mark</code> and <code>reset</code> method;
          <code>false</code> otherwise.</DL>
</DD>
</DL>
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