bufferedreader.html

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<A NAME="BufferedReader(java.io.Reader, int)"><!-- --></A><H3>
BufferedReader</H3>
<PRE>
public <B>BufferedReader</B>(<A HREF="../../java/io/Reader.html">Reader</A>&nbsp;in,
                      int&nbsp;sz)</PRE>
<DL>
<DD>Create a buffering character-input stream that uses an input buffer of
 the specified size.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>in</CODE> - A Reader<DD><CODE>sz</CODE> - Input-buffer size<DT><B>Throws:</B><DD><CODE><A HREF="../../java/lang/IllegalArgumentException.html">IllegalArgumentException</A></CODE> - If sz is <= 0</DL>
</DD>
</DL>
<HR>

<A NAME="BufferedReader(java.io.Reader)"><!-- --></A><H3>
BufferedReader</H3>
<PRE>
public <B>BufferedReader</B>(<A HREF="../../java/io/Reader.html">Reader</A>&nbsp;in)</PRE>
<DL>
<DD>Create a buffering character-input stream that uses a default-sized
 input buffer.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>in</CODE> - A Reader</DL>
</DD>
</DL>

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<A NAME="read()"><!-- --></A><H3>
read</H3>
<PRE>
public int <B>read</B>()
         throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Read a single character.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../java/io/Reader.html#read()">read</A></CODE> in class <CODE><A HREF="../../java/io/Reader.html">Reader</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="read(char[], int, int)"><!-- --></A><H3>
read</H3>
<PRE>
public int <B>read</B>(char[]&nbsp;cbuf,
                int&nbsp;off,
                int&nbsp;len)
         throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Read characters into a portion of an array.

 <p> This method implements the general contract of the corresponding
 <code><A HREF="../../java/io/Reader.html#read(char[], int, int)"><CODE>read</CODE></A></code> method of the
 <code><A HREF="../../java/io/Reader.html"><CODE>Reader</CODE></A></code> class.  As an additional convenience, it
 attempts to read as many characters as possible by repeatedly invoking
 the <code>read</code> method of the underlying stream.  This iterated
 <code>read</code> continues until one of the following conditions becomes
 true: <ul>

   <li> The specified number of characters have been read,

   <li> The <code>read</code> method of the underlying stream returns
   <code>-1</code>, indicating end-of-file, or

   <li> The <code>ready</code> method of the underlying stream
   returns <code>false</code>, indicating that further input requests
   would block.

 </ul> If the first <code>read</code> on the underlying stream returns
 <code>-1</code> to indicate end-of-file then this method returns
 <code>-1</code>.  Otherwise this method returns the number of characters
 actually read.

 <p> Subclasses of this class are encouraged, but not required, to
 attempt to read as many characters as possible in the same fashion.

 <p> Ordinarily this method takes characters from this stream's character
 buffer, filling it from the underlying stream as necessary.  If,
 however, the buffer is empty, the mark is not valid, and the requested
 length is at least as large as the buffer, then this method will read
 characters directly from the underlying stream into the given array.
 Thus redundant <code>BufferedReader</code>s will not copy data
 unnecessarily.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../java/io/Reader.html#read(char[], int, int)">read</A></CODE> in class <CODE><A HREF="../../java/io/Reader.html">Reader</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>cbuf</CODE> - Destination buffer<DD><CODE>off</CODE> - Offset at which to start storing characters<DD><CODE>len</CODE> - Maximum number of characters to read<DT><B>Returns:</B><DD>The number of characters read, or -1 if the end of the
             stream has been reached<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="readLine()"><!-- --></A><H3>
readLine</H3>
<PRE>
public <A HREF="../../java/lang/String.html">String</A> <B>readLine</B>()
                throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Read a line of text.  A line is considered to be terminated by any one
 of a line feed ('\n'), a carriage return ('\r'), or a carriage return
 followed immediately by a linefeed.<DD><DL>
<DT><B>Returns:</B><DD>A String containing the contents of the line, not including
             any line-termination characters, or null if the end of the
             stream has been reached<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="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>Skip characters.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../java/io/Reader.html#skip(long)">skip</A></CODE> in class <CODE><A HREF="../../java/io/Reader.html">Reader</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>n</CODE> - The number of characters to skip<DT><B>Returns:</B><DD>The number of characters actually skipped<DT><B>Throws:</B><DD><CODE><A HREF="../../java/lang/IllegalArgumentException.html">IllegalArgumentException</A></CODE> - If <code>n</code> is negative.<DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - If an I/O error occurs</DL>
</DD>
</DL>
<HR>

<A NAME="ready()"><!-- --></A><H3>
ready</H3>
<PRE>
public boolean <B>ready</B>()
              throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Tell whether this stream is ready to be read.  A buffered character
 stream is ready if the buffer is not empty, or if the underlying
 character stream is ready.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../java/io/Reader.html#ready()">ready</A></CODE> in class <CODE><A HREF="../../java/io/Reader.html">Reader</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="markSupported()"><!-- --></A><H3>
markSupported</H3>
<PRE>
public boolean <B>markSupported</B>()</PRE>
<DL>
<DD>Tell whether this stream supports the mark() operation, which it does.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../java/io/Reader.html#markSupported()">markSupported</A></CODE> in class <CODE><A HREF="../../java/io/Reader.html">Reader</A></CODE></DL>
</DD>
<DD>Following copied from class: <CODE>java.io.Reader</CODE></DD>
<DD><DL>
<DT><B>Returns:</B><DD>true if and only if this stream supports the mark operation.</DL>
</DD>
</DL>
<HR>

<A NAME="mark(int)"><!-- --></A><H3>
mark</H3>
<PRE>
public void <B>mark</B>(int&nbsp;readAheadLimit)
          throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Mark the present position in the stream.  Subsequent calls to reset()
 will attempt to reposition the stream to this point.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../java/io/Reader.html#mark(int)">mark</A></CODE> in class <CODE><A HREF="../../java/io/Reader.html">Reader</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>readAheadLimit</CODE> - Limit on the number of characters that may be
                         read while still preserving the mark.  After
                         reading this many characters, attempting to
                         reset the stream may fail.  A limit value larger
                         than the size of the input buffer will cause a
                         new buffer to be allocated whose size is no
                         smaller than limit.  Therefore large values
                         should be used with care.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/lang/IllegalArgumentException.html">IllegalArgumentException</A></CODE> - If readAheadLimit is < 0<DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - If an I/O error occurs</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>Reset the stream to the most recent mark.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../java/io/Reader.html#reset()">reset</A></CODE> in class <CODE><A HREF="../../java/io/Reader.html">Reader</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 never been marked,
                          or if the mark has been invalidated</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>Close the stream.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../java/io/Reader.html#close()">close</A></CODE> in class <CODE><A HREF="../../java/io/Reader.html">Reader</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>
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