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Golang Questions Set 16:

Quiz Mode

Which of the following is a correct example of embedding a struct within another struct in Go?

type A struct { B }

type A struct { *B }

type A struct { b B }

type A struct { &B }

Solution:

What is the output of the following Go code?
package main
import "fmt"
func main() {
   var ptr int
   var num int = 10
   ptr = &num
   ptr = 20
   fmt.Printf("%d\n", num)
}

Address of num

Compilation error

Solution:

What is defer in Go?

A keyword used to specify the end of a block of code.

A way of declaring constants.

A keyword used to declare a variable.

A way of delaying the execution of a function until the surrounding function returns.

Solution:

What is a method set in Go?

A set of methods that a type must implement to satisfy an interface.

A set of methods that can be called on a specific type.

A set of methods that can be called on any type.

A set of functions that can be called on a specific type.

Solution:

What is composition in Go?

The ability of a type to inherit properties and behavior from another type.

The ability of a type to contain one or more fields of another type.

The ability of a function to take multiple arguments.

The ability of a function to return multiple values.

Solution:

What is abstraction in Go?

The process of hiding implementation details behind an interface.

The process of implementing multiple interfaces in a single type.

The process of inheriting properties and behavior from another type.

The process of defining a variable with multiple values.

Solution:

Which of the following is true about encapsulation in Go?

Encapsulation is not supported in Go.

Encapsulation can be achieved using the private and public keywords.

Encapsulation can be achieved using struct fields with capitalized names.

Encapsulation can be achieved using methods with a private or public prefix.

Solution:

What is polymorphism in Go?

The ability to define multiple methods with the same name on a struct.

The ability to use interfaces to treat objects of different types in the same way.

The ability to define a struct that embeds multiple other structs.

The ability to define a struct that implements multiple interfaces.

Solution:

What is the output of the following Go code snippet if an error occurs while opening the file?
file, err := os.Open("file.txt")
defer file.Close()

if err != nil {
fmt.Println("Error:", err)
} else {
fmt.Println("File opened successfully.")
}

File opened successfully.

Error: file does not exist.

Error: cannot open file.txt.

Error: failed to open file.txt.

Solution:

What is the difference between a value receiver and a pointer receiver in Go?

A value receiver operates on a copy of the value, while a pointer receiver operates on the original value.

A value receiver can only be used with built-in types, while a pointer receiver can be used with any type.

A value receiver can only be used with pointers, while a pointer receiver can be used with values.

There is no difference between a value receiver and a pointer receiver.

Solution:

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Golang Questions Set 16:

Which of the following is a correct example of embedding a struct within another struct in Go?

Solution:

What is the output of the following Go code?
package main
import "fmt"
func main() {
   var ptr int
   var num int = 10
   ptr = &num
   ptr = 20
   fmt.Printf("%d\n", num)
}

Solution:

What is defer in Go?

Solution:

What is a method set in Go?

Solution:

What is composition in Go?

Solution:

What is abstraction in Go?

Solution:

Which of the following is true about encapsulation in Go?

Solution:

What is polymorphism in Go?

Solution:

What is the output of the following Go code snippet if an error occurs while opening the file?
file, err := os.Open("file.txt")
defer file.Close()

if err != nil {
fmt.Println("Error:", err)
} else {
fmt.Println("File opened successfully.")
}

Solution:

What is the difference between a value receiver and a pointer receiver in Go?

Solution:

Related Question Sets:

Related Topics:

Golang Questions Set 16:

Which of the following is a correct example of embedding a struct within another struct in Go?

Solution:

What is the output of the following Go code?package mainimport "fmt"func main() { var ptr *int var num int = 10 ptr = &num *ptr = 20 fmt.Printf("%d\n", num)}

Solution:

What is defer in Go?

Solution:

What is a method set in Go?

Solution:

What is composition in Go?

Solution:

What is abstraction in Go?

Solution:

Which of the following is true about encapsulation in Go?

Solution:

What is polymorphism in Go?

Solution:

What is the output of the following Go code snippet if an error occurs while opening the file?file, err := os.Open("file.txt")defer file.Close()if err != nil { fmt.Println("Error:", err)} else { fmt.Println("File opened successfully.")}

Solution:

What is the difference between a value receiver and a pointer receiver in Go?

Solution:

Related Question Sets:

Related Topics:

What is the output of the following Go code?
package main
import "fmt"
func main() {
var ptr int
var num int = 10
ptr = &num
ptr = 20
fmt.Printf("%d\n", num)
}

What is the output of the following Go code snippet if an error occurs while opening the file?
file, err := os.Open("file.txt")
defer file.Close()

if err != nil {
fmt.Println("Error:", err)
} else {
fmt.Println("File opened successfully.")
}