Go Hello World Program

This repository contains a simple "Hello World" program written in Go. It's a great starting point for learning Go, a modern programming language designed for efficiency and simplicity.

Prerequisites

• Go Installation: Ensure you have Go installed on your system.

Installation Instructions

1. Download Go:

   • Visit the official Go website: https://golang.org/dl/
   • Download the version appropriate for your operating system.

2. Install Go:

   • Windows: Run the .msi installer and follow the instructions.
   • macOS: Use the .pkg file or install via Homebrew:

     brew install go

   • Linux: Extract the downloaded tarball and move it to /usr/local:

     tar -C /usr/local -xzf go1.xx.x.linux-amd64.tar.gz
     export PATH=$PATH:/usr/local/go/bin

3. Verify Installation:

   go version

Program Code

Create a new file named main.go and add the following code:

package main

import "fmt"

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

Compilation Instructions

1. Navigate to your project directory:

   cd /path/to/your/project

2. Build the executable:

   go build main.go

Executables:

• Linux/macOS: Produces an executable named main (or the filename of your .go file).

  • Run the program:

    ./main

• Windows: Produces an executable named main.exe.

  • Run the program:

    .\main.exe

Explanation

• go build compiles the code and creates an executable in the current directory.
• Cross-platform compatibility: Go allows building binaries for different operating systems. You can set environment variables to target other platforms:

  GOOS=windows GOARCH=amd64 go build main.go