get float from another class unity code example

Example 1: unity float from another script

public GameObject ScriptHolder;
public float Afloat;

//retrieve float every frame
void Update()
{
	Afloat = ScriptHolder.GetComponent<Script>().WantedFloat;
}

Example 2: get float from others script

var class1 = GameObject.Find("MyObjectScript").GetComponent<MyClass1>();
    class1.myfloat = 3;