Hello world not working in Zend framework 2

Dear Friends
I am new to Zf2 , installed a skeleton of v 2.2 using composer and to avoid , public folder in URL take the files inside the public folder in to root (index.php, js folder,css folder,fonts folder,img folder) and comment out one line in index.php file
So my ZF2 installation in URL : http://localhost/zf2/
with screenshot as shown: http://postimg.org/image/6m7ijtwh1/

I need to write a custom hello world controller and work on it . I try the post in URL :
But not get it work . Please advise how I can create a ‘Hello World’ stuff?

Waiting your fast reply