Get Post Titles

I’ve tried over and over with different things but I can’t figure it out. What I wan’t to to is to show 5 post titles and that’s it. The documentation on how to write this code is very poor to say the least.

<?php query_posts('showposts=5'); ?>
<?php if (have_posts()) : ?>

<?php while (have_posts()) : the_post(); ?>

<h2><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h2>

<?php endwhile; ?>