// Use article as entity
echo $article->get('title');

// Use params transparently
if ($article->param('show_title', '1') === '1')
{
	echo $article->get('title');
}

// Check if article is featured
if ($article->isFeatured())
{
	// Do something
}

// Check if article has an intro image
if ($article->hasIntroImage())
{
	$image = $article->getIntroImage();
	echo '<img src="' . JUri::root(true) . '/' . $image['url'] . '" />';
}

// Check article state
if ($article->isPublished())
{
	echo 'Article published!';
}

// Retrieve article category
echo $article->category()->get('title');

// You can modify article properties
$article->set('title', 'My modified title');

// And save it
try	
{
	$article->save();
}
catch (\RuntimeException $e)
{
	echo 'There was an error saving article: ' . $e->getMessage();
}