Exercise 5: Loops and Conditions in Go

Exercise Objectives:

1. Use loops to repeat actions.
2. Apply conditions (`if`, `else if`, `else`) to execute code blocks based on test results.
3. Understand how to manipulate data sequences using loops and conditions.

Loops in Go:

Loops allow you to repeat a block of code multiple times. In Go, the primary loop structure is the `for` loop, which is very flexible.

• Example of a simple `for` loop:

for i := 1; i <= 10; i++ {
    fmt.Println(i)
}

• Explanation: This loop starts at `i = 1` and runs while `i <= 10`, incrementing `i` by 1 on each iteration.
• The `for` loop can also function like a `while` loop:

i := 1
for i <= 10 {
    fmt.Println(i)
    i++
}

Conditions in Go:

Conditions allow you to execute code only when a specific condition is met. In Go, `if`, `else if`, and `else` statements are commonly used.

• Example of a simple condition:

if i % 2 == 0 {
    fmt.Println("The number is even")
} else {
    fmt.Println("The number is odd")
}

Exercise Instructions:

Create a file named loops_conditions.go and follow these steps:

1. Use a `for` loop to iterate from 1 to 10.
2. For each iteration, apply a condition:
   • If the number is even, print "Number X is even".
   • If the number is odd, print "Number X is odd".
   • Add a special condition to print "Number 5 is special!" when the number is 5.

package main

import "fmt"

func main() {
    for i := 1; i <= 10; i++ {
        if i % 2 == 0 {
            fmt.Println(i, "is even")
        } else {
            fmt.Println(i, "is odd")
        }

        if i == 5 {
            fmt.Println("Number 5 is special!")
        }
    }
}

Expected Output:

1 is odd
2 is even
3 is odd
4 is even
Number 5 is special!
6 is even
7 is odd
8 is even
9 is odd
10 is even

Learn More:

For more details on loops and conditions in Go, check the official Go documentation: