Saying hello is always a good thing, but talking to a program is always a better thing to do.

The way programs talk

Programs does talk in its own way, its own strict obsessive code that is very particular for every language.

Variables and arguments

You can have variables, but if you don't have arguments, you will lose.

The code

package main

import (
    "fmt"
)

func main() {
    fmt.Println("Hello World!")
}