Continue statement in Go - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ Predict Output

intermediate

Output of loop with continue skipping even numbers

What is the output of this Go program?

Go

package main
import "fmt"
func main() {
    for i := 1; i <= 5; i++ {
        if i%2 == 0 {
            continue
        }
        fmt.Print(i, " ")
    }
}

A 1 3 5

B 2 4

C 1 2 3 4 5

D 1 3 4 5

💡 Hint

The continue statement skips the rest of the loop body for even numbers.

The loop prints numbers from 1 to 5. When the number is even, continue skips printing it. So only odd numbers 1, 3, and 5 are printed.

❓ Predict Output

intermediate

Continue statement inside nested loops

What will this Go program print?

Go

package main
import "fmt"
func main() {
    for i := 1; i <= 2; i++ {
        for j := 1; j <= 3; j++ {
            if j == 2 {
                continue
            }
            fmt.Printf("%d%d ", i, j)
        }
    }
}

A 11 21 31

B 11 13 21 23

C 12 22

D 11 12 13 21 22 23

💡 Hint

Continue skips printing when j equals 2, but only for the inner loop.

The inner loop skips printing when j == 2, so it prints j=1 and j=3 for each i. So output is 11 13 21 23.

❓ Predict Output

advanced

Effect of continue in a range loop over a slice

What is the output of this Go program?

Go

package main
import "fmt"
func main() {
    nums := []int{1, 2, 3, 4, 5}
    sum := 0
    for _, n := range nums {
        if n%2 == 0 {
            continue
        }
        sum += n
    }
    fmt.Println(sum)
}

A 9

B 10

C 15

D 7

💡 Hint

Only odd numbers are added to sum because continue skips even numbers.

The loop adds only odd numbers: 1 + 3 + 5 = 9. Even numbers are skipped by continue.

❓ Predict Output

advanced

Continue statement with label in nested loops

What will this Go program print?

Go

package main
import "fmt"
func main() {
Outer:
    for i := 1; i <= 3; i++ {
        for j := 1; j <= 3; j++ {
            if j == 2 {
                continue Outer
            }
            fmt.Printf("%d%d ", i, j)
        }
    }
}

A 11 31

B 11 12 13 21 22 23 31 32 33

C 11 13 21 23 31 33

D 11 21 31

💡 Hint

Continue with label skips to next iteration of the outer loop when j == 2.

When j == 2, continue Outer skips the rest of inner and outer loop body and moves to next i. So only j=1 prints for each i: 11 21 31.

🧠 Conceptual

expert

Why use continue statement in Go loops?

Which of the following best explains the purpose of the continue statement in Go loops?

A It pauses the loop execution until a condition is met.

B It immediately exits the entire loop and continues execution after the loop.

C It skips the remaining statements in the current iteration and moves to the next iteration of the loop.

D It restarts the loop from the first iteration regardless of the current position.

💡 Hint

Think about what happens when you want to skip some work but keep looping.

The continue statement skips the rest of the current loop iteration and proceeds with the next iteration. It does not exit the loop or restart it.