Need help to create custom ID to cube!

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1

Hi ,i create a script for Cube id but unity always say :
kocka.cs(3,22): error CS0246: The type or namespace name `Cube’ could not be found. Are you missing an assembly reference?, can u help me? Thanks.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class Kocka : Cube
{
private int id;

void setId(int id)
{
this.id = id;
}

int getId()
{
return this.id;
}
}

2

What is this Cube you are referring to? Where did it come from? (BTW, advice: try to keep your class and variable names in English, most people here does not read Hungarian :wink: )