Protocol conformance in Swift - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a protocol named Printable.

Swift

protocol [1] {
    func printDetails()
}

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APrintableType

BPrintableProtocol

CPrint

DPrintable

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different protocol name than Printable.

Adding extra words like 'Protocol' in the name.

The protocol is named Printable. This name matches the usage in the code.

2fill in blank

medium

Complete the code to make the struct conform to the Printable protocol.

Swift

struct User: [1] {
    var name: String
    func printDetails() {
        print("User: \(name)")
    }
}

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APrintableProtocol

BPrintableType

CPrintable

DPrint

Attempts:

3 left

💡 Hint

Common Mistakes

Using a wrong protocol name.

Forgetting to add the protocol after the colon.

The struct User conforms to the Printable protocol by declaring it after the colon.

3fill in blank

hard

Fix the error by completing the method to conform to Printable.

Swift

struct Product: Printable {
    var id: Int
    func [1]() {
        print("Product ID: \(id)")
    }
}

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AprintDetails

BshowDetails

Cdisplay

DprintInfo

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different method name than required.

Missing the method implementation.

The method name must be printDetails() to match the protocol requirement.

4fill in blank

hard

Fill both blanks to create a protocol and make a class conform to it.

Swift

protocol [1] {
    func describe()
}

class Car: [2] {
    func describe() {
        print("This is a car.")
    }
}

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ADescribable

BPrintable

Attempts:

3 left

💡 Hint

Common Mistakes

Using different names for protocol and conformance.

Using the wrong protocol name.

The protocol is named Describable and the class Car conforms to it by declaring Describable.

5fill in blank

hard

Fill all three blanks to define a protocol with a property and method, then conform a struct to it.

Swift

protocol [1] {
    var name: String { get }
    func greet()
}

struct Person: [2] {
    var name: String
    func [3]() {
        print("Hello, \(name)!")
    }
}

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AGreetable

Cgreet

DgreetDetails

Attempts:

3 left

💡 Hint

Common Mistakes

Using different names for protocol and conformance.

Incorrect method name implementation.

The protocol is named Greetable. The struct Person conforms to it and implements the method greet().