Parsing error 8205

Questions & Answers
1

Im getting an error for this code

using UnityEngine;
using System.Collections;

public class ExampleBehaviourScript : MonoBehaviour
{
    void Update()
    {
        if (Input.GetKeyDown(KeyCode.R))
        {
            GetComponent<SpriteRenderer>().color = Color.red;
        }
        if (Input.GetKeyDown(KeyCode.G))
        {
            GetComponent<SpriteRenderer>().color = Color.green;
        }
        if (Input.GetKeyDown(KeyCode.B))
        {
            GetComponent<SpriteRenderer>().color = Color.blue;
        }

    }

}

I just started using unity 2 days ago, I have absolutely no coding knowledge so you will need to explain this like its to a 10 year old… I just put this together using google searches and copy pasting what others wrote. I’m trying to make it so a circle will change colour based on a key press, eg: if r is pressed, the circle goes red. Not sure if this does anything like that but yeah…

Also, what does ‘public class’ mean? What are the two top lines, “using UnityEngine; and using System.Collections;” mean? They seem to be in most code I see. What does void mean in this context?

2

P.S: how do people know what specific code needs to be written to perform an action? I tried to google what code would need to be written to change the colour with a keypress but I can’t seem to find it in any guide or tutorial. How do people figure this stuff out?