Importing packages in Go - Mini Project: Build & Apply

Importing packages

📖 Scenario: You are writing a simple Go program that uses a package to print text to the screen.

🎯 Goal: Learn how to import a package and use a function from it to display a message.

📋 What You'll Learn

Create a Go file with a main package

Import the fmt package

Use fmt.Println to print a message

💡 Why This Matters

🌍 Real World

Importing packages is how Go programs use code written by others or in other files, like printing text or doing math.

💼 Career

Knowing how to import and use packages is essential for writing real Go programs in software development jobs.

1

Create the main package and function

Write the first two lines to create a Go program with package main and a func main() function.

Go

package main

func main() {
    // Your code here
}

Hint

Every Go program starts with a package declaration and a main function to run.

2

Import the fmt package

Add an import statement to import the fmt package right after package main.

Go

package main

import "fmt"

func main() {
    // Your code here
}

Hint

Use import "fmt" to bring in the package for printing.

3

Use fmt.Println to print a message

Inside the main function, write fmt.Println("Hello, Go!") to print the message.

Go

package main

import "fmt"

func main() {
    // Your code here
}

Hint

Use fmt.Println to print text with a new line.

4

Run the program to see the output

Write fmt.Println("Hello, Go!") is already done. Now run the program and print the output.

Go

package main

import "fmt"

func main() {
    fmt.Println("Hello, Go!")
    // Your code here
}

Hint

Running the program should print Hello, Go! to the screen.