200+ Golang Questions - Set 13 [With Solutions]

Golang Questions Set 13:

Quiz Mode

Golang Questions

Set 13/15

Which keyword is used to import packages in Go?

include

import

require

use

Which keyword is used to terminate a loop in Go?

break

continue

return

exit

Which keyword is used to define an interface in Go?

struct

type

interface

func

What is the correct syntax for a Go Lang if statement?

if (condition) {}

if condition {}

if condition then {}

if {condition}

Which of the following is NOT a valid array declaration in Go?

var a [5]int

a := [5]int{1, 2, 3, 4, 5}

a := []int{1, 2, 3, 4, 5}

a := [...]int{1, 2, 3}

What is the purpose of an interface in Go?

To enable multiple inheritance in Go

To enforce strict typing in a Go program

To provide a way to instantiate new types

To define a set of method signatures that a type must implement

What will be the output of the following code snippet?
package main
import "fmt"

func main() {
  arr := []int{1, 2, 3, 4, 5}
  slice := arr[1:4]
  slice[1] = 10
  fmt.Println(arr)
}

[1, 2, 3, 4, 5]

[1, 2, 10, 4, 5]

[1, 10, 3, 4, 5]

Compilation error

Which of the following is NOT a valid way to implement an interface in Go?

Defining the methods of the interface on a struct type

Creating a new type that implements the interface

Defining the methods of the interface on an interface type

Using a pointer receiver for the methods of the interface

Which of the following is true about the Go Lang switch statement?

The expression in a switch statement can only be a string or an integer

The default case in a switch statement is optional

The break statement is required at the end of each case block

The fallthrough keyword is used to move to the next case block

What is the output of the following code?
package main
import "fmt"

func main() {
   var ptr *int
   fmt.Printf("Value of ptr: %x\n", ptr)
   if ptr == nil {
       fmt.Println("ptr is nil")
   } else {
       fmt.Println("ptr is not nil")
   }
}

Value of ptr: 0, ptr is nil

Value of ptr: 0, ptr is not nil

Value of ptr: some random value, ptr is nil

Compilation error

Quiz Mode

Qn. Sets

Golang Questions Set 13:

Golang Questions

Which keyword is used to import packages in Go?

Reveal Answer

Reveal Answer

Which keyword is used to terminate a loop in Go?

Reveal Answer

Reveal Answer

Which keyword is used to define an interface in Go?

Reveal Answer

Reveal Answer

What is the correct syntax for a Go Lang if statement?

Reveal Answer

Reveal Answer

Which of the following is NOT a valid array declaration in Go?

Reveal Answer

Reveal Answer

What is the purpose of an interface in Go?

Reveal Answer

Reveal Answer

What will be the output of the following code snippet?package mainimport "fmt"func main() { arr := []int{1, 2, 3, 4, 5} slice := arr[1:4] slice[1] = 10 fmt.Println(arr)}

Reveal Answer

Reveal Answer

Which of the following is NOT a valid way to implement an interface in Go?

Reveal Answer

Reveal Answer

Which of the following is true about the Go Lang switch statement?

Reveal Answer

Reveal Answer

What is the output of the following code?package mainimport "fmt"func main() { var ptr *int fmt.Printf("Value of ptr: %x\n", ptr) if ptr == nil { fmt.Println("ptr is nil") } else { fmt.Println("ptr is not nil") }}

Reveal Answer

Reveal Answer

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What will be the output of the following code snippet?
package main
import "fmt"

func main() {
arr := []int{1, 2, 3, 4, 5}
slice := arr[1:4]
slice[1] = 10
fmt.Println(arr)
}

What is the output of the following code?
package main
import "fmt"

func main() {
var ptr *int
fmt.Printf("Value of ptr: %x\n", ptr)
if ptr == nil {
fmt.Println("ptr is nil")
} else {
fmt.Println("ptr is not nil")
}
}