Writing your first Go Lang program

Go is an open-source, statically typed programming language designed to build scalable, secure, easy-to-use systems. Given that Go Lang was created by Google, Google Go is another moniker for it. It was developed to fill the gap between Java and C++ to provide code that is easy to understand, maintain, and execute without degrading. Go is a compiled language with features that are comparable to those of C and C++ and share the same initial main function.

Installing Go:

• For windows users: https://go.dev/dl/
• For Linux users:
  • Arch Linux: sudo pacman -S go
  • Debian: sudo apt install go

Let’s start creating our first Hello world code:

• First of all create a folder using following command:

 mkdir <Your folder>

• Now cd into your folder and create a file named main.go.

 cd <Your folder>
 touch main.go

• Now we need to initialize our go module in this folder.

go mod init <your module name>

• We have initiated our module. So, we can start editing our main.go file.

• Here, you can see written package main, this determine its package name so that we can import go function from one directory to another.

• fmt package stands for format. It is used to print our data by using Println function

package main
import "fmt"

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

• run and build the program using command below:

$ go run .
$ go build