encapsulation
inheritence
polymorphism
aggregation
q 4-7

inheritence: allows you to derive a new class from an existing one where the new class automatically inherits the dats members and the member function of the existing class

polymorphism: a member function that will produce different results depending on the type of object which

abstract data type: a description of the visible behaviour of a data type, hiding the details of how its implemented

question 9: most convenient way of representing tic tac toe in terms of data structure -

10: what one of a list of data structures is mot likely to be a static data structure

11: identify the type of queue: (double ended queue)

12: identify this: a stack

13: identify this: double linked

14: identify a type of sort of an illustration (bubble and merge) (lecture 5)

15: same as question 14

16: identify this (array)

17: identify this (tree)

18: two fundamental operations of a stack - push and pop

19: question about sorting algorithm efficiency (bubble least efficient)

20: ??

21: a game can have a number of chars/players who have certain demographics such as name, sex, age and height. in the game the character may carry one or more inventory items which are classified into weapons, health and magical items. the game has a number of enemies in it which are of particular types and can be either: a vampire, gargoyle, or werewolf with different food sources
9 marks awarded for class identification
2 marks for inheritence identification
2 marks are awarded for correct cardinality
5 marks for the attributes, appropriate types and scope
2 marks for one correct set of accessor and mutator functions

obfuscation/subterfuge

22: identification of two correct type of inheritence
weapons( super class)
inventory(sub class)
magic(sub class)
weapons(sub class)

23: identifying cardinality (2 marks)

character(*..*)_____(1..*) inventory item

an inventory item can only have one character, but one character can have many inventory items

24: identifying attribute types and scope

-name: String
-sex: char
-age: integer
-height: float

25: identifying a correct set of mutator and accessor functions:

+setName(newName: String): void
+getName(): String