Need help with questions # 1 and 3 Multiple Inheritance Homework 1. As part of a

Question

Need help with questions # 1 and 3 Multiple Inheritance Homework 1. As part of a military video game, a designer has created a vehicle class hierarchy. The base class is vehicle and it has Airvehicle, Landveh and Sea vehicle as derived classes. The class seaPlane inherits from both Airvehicle and Seavehicle. specifically, what design issues had to be considered in developing the SeaPlane class? 2. What is the distinction between an abstract base class and a virtual base class? 3. Give the output for the following program without executing the code. class A protected: int fa public: A (int va 0) fa (va) cout A constructor endl. A (const A& va) fa (va fa) t cout "A copy constructor endl; -A cout "A destructor endl; A6 operator (const A& va) cout operator endli fa va fa; return *this;

Explanation / Answer

a.
Since seaplane has two parent class, and those two parent class have same parent class (i.e. vehicle class), so we can expect quite a number of similar method definitions in both the parent classes (seavehicle and airvehicle). So we need to determine that out class seaplane should define its own set of methods or should it inherit. If it inherits, which class (seavhicle or airvehicle) have higher priority.

b.
A virtual class is one that has been qualified as virtual in the inheritance definition. When a derived class inherits from more than one base class, then it can inherits the members of a base class from multiple inheritance paths. If the base class is defined as virtual, only one copy of the members of the base class is inherited by the derived class irrespective of the fact that it can be inherited from a number of inheritance paths.
An abstract class is one, which is never instantiated. The objects of an abstract base class are never created. A base class that contains pure virtual functions is an abstract base class. A pure virtual function is a virtual function that has no implementation in its class. Thus an abstract class provides a base upon which to build other classes. It is designed only to act as a base class for other classes and it is not to create objects. Thus an abstract base class provides some transit to the derived classes and is never initiated.

c.
OUTPUT:
A constructor
B constructor
B = operator
A = operator

If you need more clarification on the question, please feel free to comment below. I shall try my best to resolve all your issues.

Related Questions

Navigate

• Browse (All)
• Browse N
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.