C#

public class Class1
{
  protected internal string MyVariable;
}

public class Class2
{
  public void DoSomething()
  {
    Class1 class1 = new Class1();
    class1.MyVariable = "Hello"; // Even though Class2 doesn't inherit from class1, it can still see MyVariable.
  }
}

public class Class3 : Class1
{
  public void Something2()
  {
    MyVariable = "Hello there"; // This works because Class3 inherits from Class1, so can see MyVariable
  }
}

public class Class4
{
  public void Something3()
  {
    Class3 class3 = new Class3();
    class3.MyVariable = "Hi there"; // This won't compile because it's not in the same assembly and it doesn't
                                    // inherit from Class1.
  }
}

public cInput() : base() {}

abstract class acLogicGate : acGenericGate<br />
{<br />
    private cInput m_bInputs;<br />
    private cOutput m_bOutput;<br />

abstract class acLogicGate : acGenericGate<br />
{<br />
    private cInput[] m_bInputs;<br />
    private cOutput m_bOutput;

public acLogicGate() : base()<br />
{<br />
    Console.WriteLine("\n Default cLogicGate Cons");<br />
        m_bInputs = new cInput[1];<br />
    m_bOutput = new cOutput();<br />
}

<br />
		public cInput() : base()<br />
		{<br />
			Console.WriteLine("\n cInput Cons");<br />
			m_bState = false;<br />
		}

<br />
	abstract class  acGenericGate<br />
	{<br />
		public virtual void m_AssignInput(acGenericGate Gate, cInput[] m_bInputs)<br />
		{<br />
		}<br />
	}

<br />
int[] IntArray;<br />
IntArray = new int[2];<br />

<br />
cInput[] bInputs;<br />
bInputs = new cInput[2];<br />
bInputs[0].m_SetState(true);<br />

<br />
cInput[] bInputs;<br />
bInputs = new cInput[2];<br />
<br />
for(int i = 0; i < bInputs.Length; i++)<br />
{<br />
   bInputs[i] = new cInput();<br />
   bInputs[i].m_SetState(true); <br />
}<br />