Tests if this input stream supports the <code>mark</code> and
<code>reset</code> methods. Whether or not <code>mark</code> and
<code>reset</code> are supported is an invariant property of a
particular input stream instance. The <code>markSupported</code> method
of <code>InputStream</code> returns <code>false</code>.
@return <code>true</code> if this stream instance supports the mark
and reset methods; <code>false</code> otherwise.
@see java.io.InputStream#mark(int)
@see java.io.InputStream#reset()
Tests if this input stream supports the <code>mark</code> and <code>reset</code> methods. Whether or not <code>mark</code> and <code>reset</code> are supported is an invariant property of a particular input stream instance. The <code>markSupported</code> method of <code>InputStream</code> returns <code>false</code>.
@return <code>true</code> if this stream instance supports the mark and reset methods; <code>false</code> otherwise. @see java.io.InputStream#mark(int) @see java.io.InputStream#reset()