magento 2 load product attribute code example

Example 1: magento load product by id

$productId = 20;
$product = Mage::getModel('catalog/product')->load($productId);

Example 2: Magento2: How to load product by id

productRepository = $productRepository;
          }
          public function getProduct()
          {

              $productId=1;
              return $product = $this->productRepository->getById($productId);
          }
      }