Creating struct values in Go - Interactive Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a struct value with default zero values.

Go

type Person struct {
    Name string
    Age  int
}

func main() {
    p := [1]{}
    fmt.Println(p)
}

Drag options to blanks, or click blank then click option'

Aperson

BPerson

Cstruct

Dnew

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase 'person' instead of 'Person'.

Using 'new' keyword which returns a pointer, not a value.

To create a struct value, use the struct type name followed by curly braces.

2fill in blank

medium

Complete the code to create a struct value with field values.

Go

type Person struct {
    Name string
    Age  int
}

func main() {
    p := Person{
        Name: [1],
        Age:  30,
    }
    fmt.Println(p)
}

Drag options to blanks, or click blank then click option'

AName

BAlice

C'Alice'

D"Alice"

Attempts:

3 left

💡 Hint

Common Mistakes

Using unquoted string which causes a compile error.

Using single quotes which are for rune literals.

String values must be enclosed in double quotes in Go.

3fill in blank

hard

Fix the error in creating a struct value with field names.

Go

type Person struct {
    Name string
    Age  int
}

func main() {
    p := Person{
        [1]: "Bob",
        Age:  25,
    }
    fmt.Println(p)
}

Drag options to blanks, or click blank then click option'

Aname

BAGE

CName

Dage

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase field names which do not match struct fields.

Using all uppercase which is incorrect.

Field names are case-sensitive and must match exactly as declared in the struct.

4fill in blank

hard

Fill both blanks to create a struct value with fields and print the Name.

Go

type Person struct {
    Name string
    Age  int
}

func main() {
    p := Person{
        [1]: "Carol",
        [2]: 40,
    }
    fmt.Println(p.Name)
}

Drag options to blanks, or click blank then click option'

AName

BAge

Cname

Dage

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase field names causing errors.

Mixing up field names.

Use exact field names with correct capitalization to assign values.

5fill in blank

hard

Fill all three blanks to create a struct value, update Age, and print the updated struct.

Go

type Person struct {
    Name string
    Age  int
}

func main() {
    p := Person{
        [1]: "Dave",
        [2]: 28,
    }
    p.[3] = 29
    fmt.Println(p)
}

Drag options to blanks, or click blank then click option'

AName

BAge

Dname

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase field names.

Forgetting to update the Age field correctly.

Assign values using exact field names and update the Age field before printing.