Repositions this stream to the position at the time the <code>mark</code> method was last called on this input stream.
<p> The method <code>reset</code> for class <code>PushbackInputStream</code> does nothing except throw an <code>IOException</code>.
@exception IOException if this method is invoked. @see java.io.InputStream#mark(int) @see java.io.IOException
See Implementation
Repositions this stream to the position at the time the <code>mark</code> method was last called on this input stream.
<p> The method <code>reset</code> for class <code>PushbackInputStream</code> does nothing except throw an <code>IOException</code>.
@exception IOException if this method is invoked. @see java.io.InputStream#mark(int) @see java.io.IOException