15.2 Vocabulary

Creating a Base Class

100

Objects that inherit  from one another use the _______ relationship.

“is-a” relationship. 

200

Which base class is correct when approaching an object design?

1. Game Piece 

2. GamePiece 

3. \Game”PieCe!”

#2 —> GamePiece 

300

Game Pieces on the board share these certain common properties EXCEPT 

1. Teams 

2. One Letter Abbreviations for Display 

3. Name

4. Location on the game board 

5. Color and Design 

#5 —> Color and Design

400

In the game piece, how many static constants need to be defined to tell you the possible teams the piece can belong to? 

Two static Constants 

500

Within the Jail Break game we might create an instance of a GamePiece like this:

GamePiece piece = new GamePiece();

True or False?

True! This is a nice starting point - with this line of code, you can now manage all pieces in a common way by setting the myCol, myRow, myPlayerType, MyAbbreviation,  and myName properties

Creating Derived Classes

100

Define Public Keyword

Means a method or variable will be available to all other classes

200

Define A protected keyword

The method or variable will be available only to methods within the same class, classes derived from the class, and classes within the same package 

300

Define Base Class

Class that has common methods and properties 

400

Define a concrete class

A class that implements all abstract methods and can be created within a new keyword

500

What does that base class AbstractGamePiece contain? 

Common piece properties and methods

Complex Class Hierarchies

100

Can more than one class in the parent hierarchy be abstract? 

Yes!

200

Give an example of a four level class hierarchy

Mammal type of animal, dog is a type of mammal, and a poodle is a type of dog

300

Define the implements keyword

Shows the java class is supporting all the methods of a particular interface

400

Define JButton

A swing class that represents a button on the GUI screen

500

Define java.lang.object 

The java base class from which all other objects are derived