Chapter 10 Review Flashcards Preview

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Flashcards in Chapter 10 Review Deck (11):
1

A class that contains at least on abstract method

Abstract Class

2

Class from which an object is instantiated

Concrete Class

3

the use of a super class variable to invoke methods on a super class and sub-class objects.

Polymorphism

4

Methods that are not interface methods and that do not provide implementations must be declared using keyword

Abstract

5

Casting a reference stored in a superclass variable to a subclass type is called

down-casting

6

An abstract class can include both methods with implementation and abstract methods

True

7

If a superclass declares an abstract method, a subclass must implement that method

False

8

Only a concrete subclass must implement the method

True

9

Abstract classes can be used to instantiate objects

False

10

You may have several levels of abstract class in a program

True

11

Constructors and Static methods can be declared abstract

False