Why C# powers Unity behavior - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a public class in Unity using C#.

Unity

public class [1] : MonoBehaviour {}

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APlayerController

Bvoid

CStart

DUpdate

Attempts:

3 left

💡 Hint

Common Mistakes

Using method names like 'Start' or 'Update' as class names.

In Unity, scripts are classes that usually inherit from MonoBehaviour. The class name should be a valid identifier like PlayerController.

2fill in blank

medium

Complete the code to define the Unity method that runs once when the script starts.

Unity

void [1]() {
    Debug.Log("Game started");
}

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AStart

BFixedUpdate

CAwake

DUpdate

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing Start with Update or Awake.

The Start method runs once before the first frame update in Unity scripts.

3fill in blank

hard

Fix the error in the code to correctly update the position of a GameObject every frame.

Unity

void Update() {
    transform.position [1] new Vector3(0, 1, 0);
}

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A=

B-=

C+=

D*=

Attempts:

3 left

💡 Hint

Common Mistakes

Using = replaces the position every frame, causing no movement.

Using += adds the vector to the current position each frame, moving the object upward.

4fill in blank

hard

Fill both blanks to create a dictionary that maps string keys to integer values in C#.

Unity

Dictionary<[1], [2]> scores = new Dictionary<[1], [2]>();

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Astring

Bint

Cfloat

Dbool

Attempts:

3 left

💡 Hint

Common Mistakes

Using types like float or bool incorrectly for keys or values.

Dictionaries in C# use angle brackets to specify key and value types. Here, keys are strings and values are integers.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension-like initialization with conditions in C#.

Unity

var highScores = new Dictionary<[1], [2]> {
    {"Alice", 95},
    {"Bob", 85},
    {"Carol", 75}
}.Where(kv => kv.Value [3] 80).ToDictionary(kv => kv.Key, kv => kv.Value);

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Astring

Bint

C>

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong types or wrong comparison operators in the condition.

This code creates a dictionary of string keys and int values, then filters to keep only entries with values greater than 80.