Why classes are needed in C Sharp (C#) - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a class named Car.

C Sharp (C#)

public [1] Car {
    // class body
}

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Amethod

Bclass

Cvariable

Dinterface

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'method' or 'variable' instead of 'class' to declare a class.

Confusing 'interface' with 'class' keyword.

The keyword class is used to declare a class in C#.

2fill in blank

medium

Complete the code to create an object of the Car class.

C Sharp (C#)

Car myCar = new [1]();

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AVehicle

BClass

CObject

DCar

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different class name than the one declared.

Using 'Object' or 'Class' instead of the class name.

To create an object, use the class name with the new keyword.

3fill in blank

hard

Fix the error in the code to access the Car's speed property.

C Sharp (C#)

int speed = myCar.[1];

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ASpeed()

Bspeed()

CSpeed

Dspeed

Attempts:

3 left

💡 Hint

Common Mistakes

Adding parentheses when accessing a property.

Using incorrect capitalization.

Properties are accessed without parentheses and with correct capitalization.

4fill in blank

hard

Fill both blanks to define a method named Drive inside the Car class.

C Sharp (C#)

public [1] [2]() {
    Console.WriteLine("Driving");
}

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Avoid

Bint

CDrive

DCar

Attempts:

3 left

💡 Hint

Common Mistakes

Using the class name as the method name.

Using a return type other than void when no value is returned.

The method return type is void and the method name is Drive.

5fill in blank

hard

Fill all three blanks to create a Car object, set its speed, and print it.

C Sharp (C#)

Car [1] = new Car();
[1].[2] = 60;
Console.WriteLine([1].[2]);

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AmyCar

Bspeed

CSpeed

DcarSpeed

Attempts:

3 left

💡 Hint

Common Mistakes

Using different object names in different lines.

Using incorrect property names or capitalization.

Use the same object name myCar and the correct property name Speed to set and print the speed.