class Parent                class Child extends Parent     class GrandChild extends Child 
{                              {                              {
  public int x;                  public double a;               public int w; 
  private int y;                 private int b;
  protected int z;               protected c;                   public grandChildMethod()
                                                                   {
  public parentMethod1()         public childMethod1()                some code
     {                            {                                }
        some code                   some code                   }
     }                            }
  private parentMethod2()        private childMethod2()
     {                            {
        some code                   some code
     }                            }
  protected parentMethod3()      protected childMethod3()
     {                            {
        some code                   some code
     }                            }
}                               }