exchange/app/Http/Controllers/Announcement/CreateAnnouncementController.php

<?php

namespace App\Http\Controllers\Announcement;//call to announcement controller folder
use App\Http\Controllers\Controller;//call to controller class

use Illuminate\Http\Request;//call to request

class CreateAnnouncementController extends Controller
{
    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Announcement\Response
     */
    public function create()
    {
        //returns the page for this route
        return view('announcement.create_announcement');
    }

}