CPT

gistfile1.php

<?php
class Example_Plugin_Class {

	public function __construct()
	{
		$this->hooks();
	}

	protected function hooks()
	{
		add_action( 'init', array( $this, 'hooks' ) );
	}

	protected function cpt()
  	{
		register_post_type( 'reviews', array(
			'label'				=> 'Reviews',
			'labels'			=> array( 
				'name'			=> 'Reviews',
				'singular_name'	=> 'Review',
				'add_new_item'	=> 'Add New Review',
				'edit_item'		=> 'Edit Review',
				'new_item'		=> 'New Review',
				'view_item'		=> 'View Review',
				'search_items'	=> 'Search Reviews',
				),
			'description'		=> 'User-generated reviews',
			'public'			=> true,
			'show_in_nav_menus'	=> false,
			'show_in_menu'		=> true,
			'show_in_admin_bar'	=> false,
			'supports'			=> array(
				'title',
				'editor',
				'author',
				'excerpt',
				'custom-fields',
				'comments'
				),
			'menu_icon'			=> get_option('siteurl') . '/wp-content/plugins/example-plugin/images/reviews-icon.png',
			)
		);
	}
}

new Example_Plugin_Class;

Maybe it's just me, but this function seems like it's slated for disaster:

protected function hooks()
{
    add_action( 'init', array( $this, 'hooks' ) );
}

Should probably be this:

protected function hooks()
{
    add_action( 'init', array( $this, 'cpt' ) );
}