Tests if this input stream supports the <code>mark</code>
and <code>reset</code> methods. The <code>markSupported</code>
method of <code>BufferedInputStream</code> returns
<code>true</code>.
@return a <code>bool</code> indicating if this stream type supports
the <code>mark</code> and <code>reset</code> methods.
@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. The <code>markSupported</code> method of <code>BufferedInputStream</code> returns <code>true</code>.
@return a <code>bool</code> indicating if this stream type supports the <code>mark</code> and <code>reset</code> methods. @see java.io.InputStream#mark(int) @see java.io.InputStream#reset()