How to create cookie in Magento 2

Magento 2 cookie.php

<?php

$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
$cookieMetadataFactory = $objectManager->get('\Magento\Framework\Stdlib\Cookie\CookieMetadataFactory');
$cookieManager = $objectManager->get('\Magento\Framework\Stdlib\CookieManagerInterface');
$sessionConfig = $objectManager->get('\Magento\Framework\Session\Config\ConfigInterface');
$expire =  60 * 60 * 24 * 1;
$metadata = $cookieMetadataFactory->createPublicCookieMetadata();
$metadata->setDuration($expire);
$cookieManager->setPublicCookie('key', 'value',$metadata);
// set cookie value
//$cookieManager->setPublicCookie('key', 'value');

//get cookie value
$cookieManager->getCookie('key');