Execute code when key pressed?

Code (CSharp):

1.         public void OnLevelWasInitialized(int level)
2.         {
3.             ////(check for maker scene)
4.             var sceneName = UnityEngine.SceneManagement.SceneManager.GetActiveScene().name;
5.             if (sceneName == "CustomScene")
6.             {
7.                 var newObject = new GameObject();
8.                 newObject.AddComponent(Randomizer.Main.RandomizeAll);
9.             }
10.         }
11.  
12.         public class RandomizeAll
13.         {
14.             //public CharFemale female;
15.             public CharFemale female = FindObjectOfType<CharFemale>();
16.             public void Update()
17.             {
18.                 if (Input.GetKeyDown(KeyCode.Keypad1))
19.                 {
20.                     female.customInfo.shapeValueBody[0] = UnityEngine.Random.Range(0.6f, 0.95f);
21.                     female.customInfo.shapeValueBody[1] = UnityEngine.Random.Range(0.6f, 0.9f);
22.                 }
23.             }
24.         }    

I'm trying to make the code in class RandomizeAll execute whenever i press the numpad 1 key in a particular scene.

I was told that i needed to add the RandomizeAll class to a GameObject using AddComponent but all i'm getting is error CS0119 in visual studio.

RandomizeAll is inside another file btw.

Randomizer.cs => namespace Randomizer => class Main => class RandomizeAllr => class Main => class RandomizeAll

Game that i`m editing uses unity 5.

 

To be able to add a script to a gameobject, it needs to be derived from Monobehavior.

 

Adding to what @MatrixQ says above, it also has to be in its own file and named precisely like the classname.

 

Thanks that worked.