Ever wonder how websites like Facebook or other sites you love to use get made? Ever wish you could make one of those cool apps you seen on your phone? Well you can. And it all starts with learning how to say hello, “Hello World!” to be exact. When programmers have tried to learn to use a new computer programming language, the first thing they have traditionally learned to do is to get the computer to say hello. They would write a short program to display “Hello World!” on the computer screen.