Variable declaration using var in Go - Mini Project: Build & Apply

Variable declaration using var

📖 Scenario: Imagine you are organizing a small store's inventory. You want to keep track of the number of apples you have.

🎯 Goal: You will declare a variable using var to store the number of apples and then display it.

📋 What You'll Learn

Declare a variable called apples using var

Set the value of apples to 10

Print the value of apples

💡 Why This Matters

🌍 Real World

Declaring variables is the first step in storing and managing data in any program, like keeping track of inventory in a store.

💼 Career

Understanding variable declaration is essential for all programming jobs, as it helps in writing clear and maintainable code.

1

Declare the variable

Declare a variable called apples using var and set it to 10.

Go

package main

func main() {
    // Declare variable apples using var and set to 10
    // Your code here
}

Need a hint?

Use var apples int = 10 to declare and set the variable.

2

Add a helper variable

Declare a variable called storeName using var and set it to "Fruit Shop".

Go

package main

func main() {
    var apples int = 10
    // Declare variable storeName using var and set to "Fruit Shop"
    // Your code here
}

Need a hint?

Use var storeName string = "Fruit Shop" to declare the store name.

3

Use the variables

Use fmt.Println to print the message: "We have 10 apples in Fruit Shop" by combining apples and storeName. Use fmt.Printf with formatting.

Go

package main

import "fmt"

func main() {
    var apples int = 10
    var storeName string = "Fruit Shop"
    // Print the message using fmt.Printf
    // Your code here
}

Need a hint?

Use fmt.Printf("We have %d apples in %s\n", apples, storeName) to print the message.

4

Display the result

Run the program and print the output message exactly as: We have 10 apples in Fruit Shop.

Go

package main

import "fmt"

func main() {
    var apples int = 10
    var storeName string = "Fruit Shop"
    fmt.Printf("We have %d apples in %s\n", apples, storeName)
    // Your code here
}

Need a hint?

Make sure your program prints exactly: We have 10 apples in Fruit Shop