Output using fmt.Println in Go - Mini Project: Build & Apply

Output using fmt.Println

📖 Scenario: You are learning how to show messages on the screen using Go programming language. This is like writing a note that everyone can see when the program runs.

🎯 Goal: You will write a simple Go program that prints a greeting message using fmt.Println.

📋 What You'll Learn

Create a variable to hold a greeting message

Use fmt.Println to display the greeting message

💡 Why This Matters

🌍 Real World

Printing messages is the first step in making programs that talk to users or show information.

💼 Career

Knowing how to output text is essential for debugging and user interaction in software development.

1

Create a greeting message variable

Create a variable called message and set it to the string "Hello, Go learner!".

Go

package main

import "fmt"

func main() {
    // Create a variable called message and set it to "Hello, Go learner!"
    // Your code here
}

Need a hint?

Use := to create and assign a variable in one step.

2

Import the fmt package

Make sure the fmt package is imported at the top of your program with import "fmt".

Go

package main

// Check that fmt package is imported
import "fmt"

func main() {
    message := "Hello, Go learner!"
    // Your code here
}

Need a hint?

The fmt package is needed to use fmt.Println.

3

Print the greeting message

Use fmt.Println to print the variable message inside the main function.

Go

package main

import "fmt"

func main() {
    message := "Hello, Go learner!"
    // Use fmt.Println to print message
    // Your code here
}

Need a hint?

Write fmt.Println(message) to show the message on the screen.

4

Run the program to see the output

Run the program and make sure it prints exactly Hello, Go learner! on the screen.

Go

package main

import "fmt"

func main() {
    message := "Hello, Go learner!"
    fmt.Println(message)
    // Run the program to see the output
}

Need a hint?

Use the command go run filename.go to run your program and see the message.