1. (TCO 4) Suppose class Child is derived from class Parent that was in turn der
ID: 3555347 • Letter: 1
Question
1. (TCO 4) Suppose class Child is derived from class Parent that was in turn derived from class GrandParent. The class Child is a _____ of GrandParent? (Points : 5) Successor
Forebearer
Ancestor
Descendant
Indirect descendant
Interfaces must implement a default constructor if even one multi-arg constructor is also implemented.
Interfaces are defined and implemented inside an abstract class.
Methods listed in an interface must be implemented when used by another class.
At least one interface must be used in any inheritance hierarchy.
5. (TCO 7) Which of the following statements is/are true? (Points : 5) Interfaces contain both implemented methods and constants.
Abstract classes always contain at least one interface.
Derived classes can inherit abstract methods.
None of the above
Detailed comments, addressing all aspects of the code
Deep levels of nesting to ensure all situations are addressed
Straightforward algorithms
All of the above
None of the above
9. (TCO 9) Which of the following allow a programmer to reduce the complexity of an object-oriented program? (Points : 5) A. create each class in a separate file
B. using packages as a container for logically related items
Both A and B
None of the above
0
1
2
3
Unnecessary relationships may be created.
Code may be harder to understand.
All of the above
Explanation / Answer
1.Descendant
2.All the above
3.Geometric Shapes
4.Methods listed in an interface must be implemented when used by another class.
5.Derived classes can inherit abstract methods.
6.All of the above
7.Coupling is increased.
8.Detailed comments, addressing all aspects of the code
9.Both A and B
10. int getDayOfBirth() {return day;}
11.public abstract void displayResult();
12.2
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