datainputstream.html

API資料大全

</DL>
<HR>

<A NAME="readShort()"><!-- --></A><H3>
readShort</H3>
<PRE>
public final short <B>readShort</B>()
                      throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>See the general contract of the <code>readShort</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#readShort()">readShort</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 a
             signed 16-bit number.<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.<DT><B>See Also: </B><DD><A HREF="../../java/io/FilterInputStream.html#in"><CODE>FilterInputStream.in</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="readUnsignedShort()"><!-- --></A><H3>
readUnsignedShort</H3>
<PRE>
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.<DT><B>See Also: </B><DD><A HREF="../../java/io/FilterInputStream.html#in"><CODE>FilterInputStream.in</CODE></A></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.<DT><B>See Also: </B><DD><A HREF="../../java/io/FilterInputStream.html#in"><CODE>FilterInputStream.in</CODE></A></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.<DT><B>See Also: </B><DD><A HREF="../../java/io/FilterInputStream.html#in"><CODE>FilterInputStream.in</CODE></A></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.<DT><B>See Also: </B><DD><A HREF="../../java/io/FilterInputStream.html#in"><CODE>FilterInputStream.in</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="readFloat()"><!-- --></A><H3>
readFloat</H3>
<PRE>
public final float <B>readFloat</B>()
                      throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>See the general contract of the <code>readFloat</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#readFloat()">readFloat</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 a
             <code>float</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.<DT><B>See Also: </B><DD><A HREF="../../java/io/DataInputStream.html#readInt()"><CODE>readInt()</CODE></A>, 
<A HREF="../../java/lang/Float.html#intBitsToFloat(int)"><CODE>Float.intBitsToFloat(int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="readDouble()"><!-- --></A><H3>
readDouble</H3>
<PRE>
public final double <B>readDouble</B>()
                        throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>See the general contract of the <code>readDouble</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#readDouble()">readDouble</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>double</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.<DT><B>See Also: </B><DD><A HREF="../../java/io/DataInputStream.html#readLong()"><CODE>readLong()</CODE></A>, 
<A HREF="../../java/lang/Double.html#longBitsToDouble(long)"><CODE>Double.longBitsToDouble(long)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="readLine()"><!-- --></A><H3>
readLine</H3>
<PRE>
public final <A HREF="../../java/lang/String.html">String</A> <B>readLine</B>()
                      throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD><B>Deprecated.</B>&nbsp;<I>This method does not properly convert bytes to characters.
 As of JDK&nbsp;1.1, the preferred way to read lines of text is via the
 <code>BufferedReader.readLine()</code> method.  Programs that use the
 <code>DataInputStream</code> class to read lines can be converted to use
 the <code>BufferedReader</code> class by replacing code of the form:
 <blockquote><pre>
     DataInputStream d =&nbsp;new&nbsp;DataInputStream(in);
 </pre></blockquote>
 with:
 <blockquote><pre>
     BufferedReader d
          =&nbsp;new&nbsp;BufferedReader(new&nbsp;InputStreamReader(in));
 </pre></blockquote></I>
<P>
<DD>See the general contract of the <code>readLine</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#readLine()">readLine</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 line of text from this input stream.<DT><B>Throws:</B><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/BufferedReader.html#readLine()"><CODE>BufferedReader.readLine()</CODE></A>, 
<A HREF="../../java/io/FilterInputStream.html#in"><CODE>FilterInputStream.in</CODE></A></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>
<!-- ========= END OF CLASS DATA ========= -->
<HR>

<!-- ========== START OF NAVBAR ========== -->
<A NAME="navbar_bottom"><!-- --></A>
<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0">
<TR>
<TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1">
<A NAME="navbar_bottom_firstrow"><!-- --></A>
<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3">
  <TR ALIGN="center" VALIGN="top">
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> &nbsp;<FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="class-use/DataInputStream.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../index-files/index-1.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A>&nbsp;</TD>
  </TR>
</TABLE>
</TD>
<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM>
<b>Java<sup><font size=-2>TM</font></sup>&nbsp;2&nbsp;Platform<br>Std.&nbsp;Ed. v1.3</b></EM>
</TD>
</TR>

<TR>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
&nbsp;<A HREF="../../java/io/CharArrayWriter.html"><B>PREV CLASS</B></A>&nbsp;
&nbsp;<A HREF="../../java/io/DataOutputStream.html"><B>NEXT CLASS</B></A></FONT></TD>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
  <A HREF="../../index.html" TARGET="_top"><B>FRAMES</B></A>  &nbsp;
&nbsp;<A HREF="DataInputStream.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD>
</TR>
<TR>
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
  SUMMARY: &nbsp;INNER&nbsp;|&nbsp;<A HREF="#fields_inherited_from_class_java.io.FilterInputStream">FIELD</A>&nbsp;|&nbsp;<A HREF="#constructor_summary">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_summary">METHOD</A></FONT></TD>
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
DETAIL: &nbsp;FIELD&nbsp;|&nbsp;<A HREF="#constructor_detail">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_detail">METHOD</A></FONT></TD>
</TR>
</TABLE>
<!-- =========== END OF NAVBAR =========== -->

<HR>
<font size="-1"><a href="http://java.sun.com/cgi-bin/bugreport.cgi">Submit a bug or feature</a><br>For further API reference and developer documentation, see <a href="http://java.sun.com/products/jdk/1.3/devdocs-vs-specs.html">Java 2 SDK SE Developer Documentation</a>. That documentation  contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples. <p>Java, Java 2D, and JDBC are trademarks or registered trademarks of Sun Microsystems, Inc. in the US and other countries.<br>Copyright 1993-2000 Sun Microsystems, Inc. 901 San Antonio Road<br>Palo Alto, California, 94303, U.S.A.  All Rights Reserved.</font>
</BODY>
</HTML>