Hello World!
The following is the Go version of the Hello World program. Please type it and save it as hw.go:
package main
import (
"fmt"
)
func main() {
fmt.Println("Hello World!")
}
Each Go source code begins with a package declaration. In this case, the name of the package is main, which has a special meaning in Go. The import keyword allows you to include functionality from existing packages. In our case, we only need some of the functionality of the fmt package that belongs to the standard Go library. Packages that are not part of the standard Go library are imported using their full internet path. The next important thing if you are creating an executable application is a main() function. Go considers this the entry point to the application and begins the execution of the application with the code found in the main() function of the main package.
hw.go is a Go program that runs on its own. Two characteristics make hw.go an autonomous...
