The currently marked position in the stream.
ByteArrayInputStream objects are marked at position zero by
default when constructed. They may be marked at another
position within the buffer by the <code>mark()</code> method.
The current buffer position is set to this point by the
<code>reset()</code> method.
<p>
If no mark has been set, then the value of mark is the offset
passed to the constructor (or 0 if the offset was not supplied).
The currently marked position in the stream. ByteArrayInputStream objects are marked at position zero by default when constructed. They may be marked at another position within the buffer by the <code>mark()</code> method. The current buffer position is set to this point by the <code>reset()</code> method. <p> If no mark has been set, then the value of mark is the offset passed to the constructor (or 0 if the offset was not supplied).