Drupal URL links programmatically

Creating URL's in Drupal programmatically:

Internal path

use Drupal\Core\Link;
use Drupal\Core\Url;

$internal_link = Link::fromTextAndUrl(t('Drupal nodes'), Url::fromUri('internal:/node', $options))->toString();

External Url

use Drupal\Core\Link;
use Drupal\Core\Url;

$external_link = Link::fromTextAndUrl(t('Codebales'), Url::fromUri('http://www.codebales.com/'))->toString();

Url with options

use Drupal\Core\Link;
use Drupal\Core\Url;

$options = array(
  'query'      => ['type' => 'article', 'status' => 1],
  'fragment'   => 'article-list',
  'attributes' => ['class' => ['btn', 'btn-mini']],
  'absolute'   => TRUE,
);

$link = Link::fromTextAndUrl(t('Drupal node articles'), Url::fromUri('internal:/node', $options))->toString();

Render type Link

use Drupal\Core\Url;

$render_array['link'] = array(
  '#title' => $this->t('Link Text Goes Here!'),
  '#type' => 'link',
  '#url' => Url::fromRoute('entity.node.canonical', ['node' => 1]),
);