First Unity project (Hello World scene) - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to display "Hello World" in the Unity console.

Unity

using UnityEngine;

public class HelloWorld : MonoBehaviour
{
    void Start()
    {
        Debug.[1]("Hello World");
    }
}

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

APrint

BLog

CWrite

DShow

Attempts:

3 left

💡 Hint

Common Mistakes

Using Debug.Print instead of Debug.Log

Trying to use Console.WriteLine which is not used in Unity

In Unity, Debug.Log is used to print messages to the console.

2fill in blank

medium

Complete the code to make the GameObject print "Hello World" when the game starts.

Unity

using UnityEngine;

public class HelloWorld : MonoBehaviour
{
    void [1]()
    {
        Debug.Log("Hello World");
    }
}

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

AStart

BAwake

CUpdate

DOnEnable

Attempts:

3 left

💡 Hint

Common Mistakes

Using Update instead of Start, causing the message to print every frame

Using Awake which runs earlier but is less commonly used for this purpose

The Start method is called once when the script instance is enabled before the first frame update.

3fill in blank

hard

Fix the error in the code to correctly print "Hello World" in the console.

Unity

using UnityEngine;

public class HelloWorld : MonoBehaviour
{
    void Start()
    {
        Debug.Log[1]("Hello World");
    }
}

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

A< >

B[ ]

C( )

D{ }

Attempts:

3 left

💡 Hint

Common Mistakes

Using square brackets instead of parentheses for method calls

Using curly braces which are for blocks, not method calls

Method calls in C# require parentheses ( ) around arguments.

4fill in blank

hard

Fill both blanks to create a script that prints "Hello World" once when the game starts.

Unity

using UnityEngine;

public class HelloWorld : MonoBehaviour
{
    void [1]()
    {
        Debug.[2]("Hello World");
    }
}

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

AStart

BLog

CUpdate

DPrint

Attempts:

3 left

💡 Hint

Common Mistakes

Using Update instead of Start, causing repeated prints

Using Debug.Print which is not a Unity method

The Start method runs once at the beginning, and Debug.Log prints the message.

5fill in blank

hard

Fill all three blanks to create a Unity script that prints "Hello World" when the game starts and uses the correct class and method names.

Unity

using UnityEngine;

public class [1] : MonoBehaviour
{
    void [2]()
    {
        Debug.[3]("Hello World");
    }
}

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

AHelloWorld

BStart

CLog

DUpdate

Attempts:

3 left

💡 Hint

Common Mistakes

Using Update instead of Start

Using Debug.Print instead of Debug.Log

Mismatching class name and script file name

The class name should be HelloWorld, the method to run once is Start, and Debug.Log prints the message.