Unity 'Hello World'

Printing to console

• Create new project (set Template to 2D).

• Inside Assets create script hello.cs with the following code:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Hello : MonoBehaviour {

    // Use this for initialization
    void Start () {
        print("Hello World");
    }
     
    // Update is called once per frame
    void Update () {
    
    }
}

That is:

1. right click in Assets area Create > C# Script,
2. rename it Hello.cs,
3. double click on it,
4. add print("Hello World"); inside Start method,
5. save it and build it (just in case).

• Attach script hello.cs to SampleScene - Main Camera by drag-and-drop the script onto Main Camera.

• Save Scene and run (press > button).

• Switch to Console tab in order to see something like

[13:29:19] Hello World
UnityEngine.MonoBehaviour:print(Object)

Printing to Scene

In order to print inside the scene you should add a method

void OnGUI()
    {
        GUILayout.Label("Hello World");
    }

into class Hello. So the script Hello.cs should like like:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Hello : MonoBehaviour {

	// Use this for initialization
	void Start () {
        print("Hello World"); 		
	}
	
	// Update is called once per frame
	void Update () {
		
	}

    void OnGUI()
    {
        GUILayout.Label("Hello World");
    }
}

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