If statement in Go - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ Predict Output

intermediate

Output of nested if statements

What is the output of this Go program?

Go

package main
import "fmt"
func main() {
    x := 10
    if x > 5 {
        if x < 15 {
            fmt.Println("Inside nested if")
        }
    } else {
        fmt.Println("Outside if")
    }
}

A No output

B Outside if

C Inside nested if

D Compilation error

💡 Hint

Check the conditions in the nested if statements carefully.

The variable x is 10, which is greater than 5 and less than 15, so the nested if condition is true and prints "Inside nested if".

❓ Predict Output

intermediate

If statement with else if

What will this Go program print?

Go

package main
import "fmt"
func main() {
    score := 75
    if score >= 90 {
        fmt.Println("Grade A")
    } else if score >= 80 {
        fmt.Println("Grade B")
    } else if score >= 70 {
        fmt.Println("Grade C")
    } else {
        fmt.Println("Grade F")
    }
}

A Grade A

B Grade C

C Grade B

D Grade F

💡 Hint

Check which condition matches the score value first.

The score is 75, which is not >= 90 or >= 80 but is >= 70, so it prints "Grade C".

❓ Predict Output

advanced

If statement with short statement

What is the output of this Go code?

Go

package main
import "fmt"
func main() {
    if x := 5; x > 3 {
        fmt.Println(x)
    } else {
        fmt.Println("No")
    }
}

A 0

B No

C Compilation error: x undefined

D 5

💡 Hint

Look at how the variable x is declared inside the if statement.

The variable x is declared and initialized to 5 in the if statement. Since 5 > 3 is true, it prints 5.

❓ Predict Output

advanced

If statement with multiple conditions

What will this Go program output?

Go

package main
import "fmt"
func main() {
    a, b := 4, 7
    if a > 3 && b < 10 {
        fmt.Println("Condition met")
    } else {
        fmt.Println("Condition not met")
    }
}

A Condition met

B Condition not met

C Compilation error

D No output

💡 Hint

Both conditions must be true for the if block to run.

a is 4 which is > 3 and b is 7 which is < 10, so both conditions are true and it prints "Condition met".

❓ Predict Output

expert

If statement with variable shadowing

What is the output of this Go program?

Go

package main
import "fmt"
func main() {
    x := 10
    if x := 5; x > 3 {
        fmt.Println(x)
    }
    fmt.Println(x)
}

A 5\n10

B 10\n10

C 5\n5

D Compilation error

💡 Hint

Notice the variable x declared inside the if statement shadows the outer x.

Inside the if statement, x is 5 and prints 5. Outside, the original x is still 10 and prints 10.