gistfile1.cs

using System;                                                                                                                                         

class TestA
{
  public int publicHoge;
  private int privateHoge;
  protected int protectedHoge;

  void BaseHoge()
  {
    publicHoge = 1;
    privateHoge = 2;
    protectedHoge = 3;
  }
}

class TestB : TestA
{
  void DerivedHoge()
  {
    publicHoge = 11;
    privateHoge = 22;
    protectedHoge = 33;
  }
}

class TestC
{
  static void Main()
  {
    TestA b = new TestA();
    Console.WriteLine(b.publicHoge);
    Console.WriteLine(b.privateHoge);
    Console.WriteLine(b.protectedHoge);
  }
}