Relational operators in Go - Mini Project: Build & Apply

Relational Operators in Go

📖 Scenario: You are creating a simple program to compare ages of two friends to see who is older.

🎯 Goal: Build a Go program that uses relational operators to compare two age values and prints the comparison results.

📋 What You'll Learn

Create two integer variables with exact values

Create a boolean variable to store a comparison result

Use relational operators to compare the two ages

Print the results of the comparisons

💡 Why This Matters

🌍 Real World

Comparing values is common in programs that make decisions, like checking ages, prices, or scores.

💼 Career

Understanding relational operators is essential for any programming job because they help control the flow of logic.

1

Create age variables

Create two integer variables called ageAlice and ageBob with values 25 and 30 respectively.

Go

package main

func main() {
    // Create ageAlice and ageBob variables
    // Your code here
}

Need a hint?

Use := to declare and assign variables in Go.

2

Create a boolean variable for comparison

Create a boolean variable called isAliceOlder and set it to the result of comparing if ageAlice is greater than ageBob using the relational operator >.

Go

package main

func main() {
    ageAlice := 25
    ageBob := 30
    // Create isAliceOlder variable with comparison
    // Your code here
}

Need a hint?

Use the > operator to check if one number is greater than another.

3

Compare ages with other relational operators

Create three more boolean variables: isAliceYounger for ageAlice < ageBob, isSameAge for ageAlice == ageBob, and isNotSameAge for ageAlice != ageBob.

Go

package main

func main() {
    ageAlice := 25
    ageBob := 30
    isAliceOlder := ageAlice > ageBob
    // Create isAliceYounger, isSameAge, and isNotSameAge variables
    // Your code here
}

Need a hint?

Use <, ==, and != operators for less than, equal to, and not equal to comparisons.

4

Print the comparison results

Use fmt.Println to print the values of isAliceOlder, isAliceYounger, isSameAge, and isNotSameAge each on a new line. Remember to import the fmt package.

Go

package main

import "fmt"

func main() {
    ageAlice := 25
    ageBob := 30
    isAliceOlder := ageAlice > ageBob
    isAliceYounger := ageAlice < ageBob
    isSameAge := ageAlice == ageBob
    isNotSameAge := ageAlice != ageBob
    // Print all boolean variables
    // Your code here
}

Need a hint?

Use fmt.Println(variable) to print each variable on its own line.