functions.php
--------------

function create_post_type() {

 register_post_type( 'all_course',
     array(
        'labels' => array(
        'name' => __( 'Our Course' ),
        'singular_name' => __( 'course' ),
        'add_new' => __( 'Add New Course' ),
        'add_new_item' => __( 'Add New Course' ),
        'edit_item' => __( 'Edit Course' ),
        'new_item' => __( 'New Course' ),
        'view_item' => __( 'View Course' ),
        'not_found' => __( 'Sorry, we could not find the Course you are looking for.' )
      ),
    'public' => true,
    'publicly_queryable' => false,
    'exclude_from_search' => true,
    'menu_position' => 14,
    'has_archive' => false,
    'hierarchical' => false,
    'capability_type' => 'page',
    'rewrite' => array( 'slug' => 'course' ),
    'supports' => array( 'title','thumbnail','editor','excerpt')
    )
  );
}


add_action( 'init', 'create_post_type' );





index.php
=========


                <?php if(!is_paged()) { ?>
                 <?php
                    $args = array( 'post_type' => 'all_course', 'posts_per_page' => 8 );
                    $loop = new WP_Query( $args );
                 ?>
                 <?php while ( $loop->have_posts() ) : $loop->the_post(); ?>
                <div class="col-md-3 col-sm-4 col-xs-12">
                    <div id="course_animate_1" class="single-featured">
                        <ul class="list-unstyled featured-list">
                            <li>
                               <?php the_post_thumbnail('image_of_course', array('class' => 'postthumbnails')); ?>
                            </li>
                            <li>
                                <h2><?php the_title(); ?></h2>
                            </li>
                        </ul>
                            <?php the_excerpt(); ?>

                        <div class="feature-title">
                            <a href="<?php the_permalink(); ?>">Learn More</a>
                            <ul class="list-unstyled list-inline pull-right">
                                <li><a href="<?php the_permalink(); ?>"><i class="fa fa-chevron-right"></i></a>
                                </li>
                            </ul>
                        </div>
                    </div>
                </div>

                 <?php endwhile; ?>
                 <?php wp_reset_query(); ?>
                 <?php } ?>