For each class above, name all the data members that are visible internally
(i.e. to methods in that class) without using the super reference.

   ClassA    from ClassA: A1 A2 A3
   ClassB    from ClassB: B1 B2
             inherited from ClassA: A1 A2
   ClassC    from ClassC: C1 C2 C3
             inherited from ClassA: A1 A2
   ClassD    from ClassD: D1
             inherited from ClassC: C1 C2
             inherited from ClassA: A1 A2

Which of these data members are NOT visible externally
(i.e.to methods in another class)?

   ClassA    A2 A3
   ClassB    B1 B2 A2
   ClassC    C2 C3 A2
   ClassD    C2 A2

For each class above, name all the methods that are visible internally
(i.e. to methods in that class) without using the super reference and not
including the Object class.

   ClassA    from ClassA: ClassA() method1() method2() method3()
   ClassB    from ClassB: ClassB() method1(int) method4() method5()
             inherited from ClassA: method1() method2()
   ClassC    from ClassC: ClassC() method1() method4() method5() method6()
             inherited from ClassA: method2()
   ClassD    from ClassD: ClassD() method1() method5() method6()
             inherited from ClassC: method4()
             inherited from ClassA: method2()

Which of these methods are NOT visible externally
(i.e. to methods in another class)?

   ClassA    method2() method3()
   ClassB    method4() method5() method2()
   ClassC    method5() method6() method2()
   ClassD    method5() method6() method2()

For each class above, name all the data members that are ONLY visible
internally
(i.e. to methods in that class) using super.

   ClassA    none since root class (ignoring Object)
   ClassB    none no re-declarations
   ClassC    none no re-declarations
   ClassD    super.C2 super.A2

For each class above, name all the methods that are ONLY visible internally
(i.e. to methods in that class) using super.

   ClassA    none since root class (ignoring Object)
   ClassB    super()
   ClassC    super() super.method1()
   ClassD    super() super.method1() super.method5()

Which of these methods are considered overridden methods?

   ClassA    none
   ClassB    none
   ClassC    super.method1()
   ClassD    super.method1() super.method5()