Need Clarification of Laravel Facade

So in the laravel documentation in laravel 5.2 it stated that this is how facade is implemented in laravel.

<?php

namespace App\Http\Controllers;

use Cache;
use App\Http\Controllers\Controller;

class UserController extends Controller
{
    /**
     * Show the profile for the given user.
     *
     * @param  int  $id
     * @return Response
     */
    public function showProfile($id)
    {
        $user = Cache::get('user:'.$id);

        return view('profile', ['user' => $user]);
    }
}

Could we do this instead?

<?php

namespace App\Http\Controllers;

use Illuminate\Support\Facades\Cache;
use App\Http\Controllers\Controller;

class UserController extends Controller
{
    /**
     * Show the profile for the given user.
     *
     * @param  int  $id
     * @return Response
     */
    public function showProfile(Cache $cache, $id)
    {
        $user = $cache->get('user:'.$id);

        return view('profile', ['user' => $user]);
    }
}

From what I can see I think that

use Cache;

is just encapsulating the call to

Illuminate\Support\Facades\Cache

am I correct? The application bootstrap that namespace into that alias I believe?

More clarification would definitely help. I'm new to laravel.Anything that I explained or described wrong please correct me thanks.

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