Generic method declaration in C Sharp (C#) - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a generic method named 'PrintItem' that takes one parameter of type T.

C Sharp (C#)

public void [1]<T>(T item) {
    Console.WriteLine(item);
}

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APrintItem

BDisplay

CShowItem

DPrint

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting to add after the method name.

Using a different method name than 'PrintItem'.

The method name must be 'PrintItem' as specified. The generic type parameter follows the method name.

2fill in blank

medium

Complete the code to declare a generic method 'GetDefault' that returns the default value of type T.

C Sharp (C#)

public T [1]<T>() {
    return default(T);
}

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AGetDefault

BDefaultValue

CGetValue

DFetchDefault

Attempts:

3 left

💡 Hint

Common Mistakes

Using a method name that does not match the requirement.

Forgetting to specify the generic type parameter .

The method name must be 'GetDefault' to match the requirement and return the default value of type T.

3fill in blank

hard

Fix the error in the generic method declaration by completing the method name correctly.

C Sharp (C#)

public void [1]<T>(T value) {
    Console.WriteLine(value);
}

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APrintVal

BPrintValue

CPrint

DDisplayValue

Attempts:

3 left

💡 Hint

Common Mistakes

Using a method name that is incomplete or misspelled.

Omitting the generic type parameter .

The correct method name is 'PrintValue' to match the intended usage and avoid errors.

4fill in blank

hard

Fill both blanks to declare a generic method 'Swap' that swaps two variables of type T using ref parameters.

C Sharp (C#)

public void [1]<T>(ref T a, ref T [2]) {
    T temp = a;
    a = [2];
    [2] = temp;
}

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ASwap

BSwapValues

Cb

Dvalue

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect parameter names.

Using a method name that does not describe swapping.

The method name is 'Swap' and the second parameter name is 'b' to correctly swap two variables.

5fill in blank

hard

Fill all three blanks to declare a generic method 'CreatePair' that returns a Tuple of two generic types T1 and T2.

C Sharp (C#)

public Tuple<[1], [2]> [3]<T1, T2>(T1 first, T2 second) {
    return Tuple.Create(first, second);
}

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AT1

BT2

CCreatePair

DMakePair

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up generic type parameters.

Using a method name that does not match the tuple creation.

The generic types are T1 and T2, and the method name is 'CreatePair' to return a tuple of two values.