The maximum read ahead allowed after a call to the
<code>mark</code> method before subsequent calls to the
<code>reset</code> method fail.
Whenever the difference between <code>pos</code>
and <code>markpos</code> exceeds <code>marklimit</code>,
then the mark may be dropped by setting
<code>markpos</code> to <code>-1</code>.
The maximum read ahead allowed after a call to the <code>mark</code> method before subsequent calls to the <code>reset</code> method fail. Whenever the difference between <code>pos</code> and <code>markpos</code> exceeds <code>marklimit</code>, then the mark may be dropped by setting <code>markpos</code> to <code>-1</code>.
@see java.io.BufferedInputStream#mark(int) @see java.io.BufferedInputStream#reset()