Program Structure

To make an executable application, your code must live in a package called main and have a function called main().

package main // This tells Go "compile this into an executable file"

import "fmt" // "fmt" is the Format package from the standard library (used for printing)

func main() {
    // 1. Variable (Short declaration)
    serverName := "CloudServer-1"
    
    // 2. Control Structure (The mighty 'for' loop)
    for i := 1; i <= 3; i++ {
        fmt.Println(serverName, "is booting up... Step", i)
    }
}

Breakdown of what each part does:

• package main tells the Go compiler that this file is a runnable application, rather than a reusable library.
• import "fmt" brings in the built-in "format" package, which gives you the tools needed to print text to the screen.
• func main() is the exact starting point where your program begins executing.