If–else statement in Go - Mini Project: Build & Apply

If-else statement

📖 Scenario: You are creating a simple program to check if a person is old enough to vote. Voting age is 18 years or older.

🎯 Goal: Build a Go program that uses an if-else statement to check a person's age and print whether they can vote or not.

📋 What You'll Learn

Create an integer variable called age with the value 20

Create an integer variable called votingAge with the value 18

Use an if-else statement to compare age with votingAge

Print "You can vote!" if age is greater than or equal to votingAge

Print "You cannot vote yet." if age is less than votingAge

💡 Why This Matters

🌍 Real World

Checking age eligibility is common in many applications like voting, driving, or buying age-restricted items.

💼 Career

Understanding if-else statements is fundamental for decision-making in programming jobs.

1

Create the age variable

Create an integer variable called age and set it to 20.

Go

package main

import "fmt"

func main() {
    // Create the age variable
    // Your code here
}

Need a hint?

Use age := 20 inside the main function to create the variable.

2

Create the votingAge variable

Create an integer variable called votingAge and set it to 18.

Go

package main

import "fmt"

func main() {
    age := 20
    // Create the votingAge variable
    // Your code here
}

Need a hint?

Use votingAge := 18 inside the main function after age.

3

Write the if-else statement

Use an if-else statement to check if age is greater than or equal to votingAge. Use if age >= votingAge and else blocks.

Go

package main

import "fmt"

func main() {
    age := 20
    votingAge := 18
    // Write the if-else statement
    // Your code here
}

Need a hint?

Use if age >= votingAge { ... } else { ... } and inside print the correct messages.

4

Print the result

Run the program to print the correct voting message based on the if-else condition.

Go

package main

import "fmt"

func main() {
    age := 20
    votingAge := 18
    if age >= votingAge {
        fmt.Println("You can vote!")
    } else {
        fmt.Println("You cannot vote yet.")
    }
    // Program prints the result
    // Your code here
}

Need a hint?

Just run the program. It will print the voting message.