CSC 351 - Chapter 11

Question 1

Abstraction

Answer 1

• view or representation of an entity that includes only the most significant attributes

Question 2

Abstract Data Type

Answer 2

• user defined type.
• representation of objects of the type are hidden from the program unit
• declarations on objects of the type are contained in a single syntactic unit

Question 3

Advantages of ADTs

Answer 3

• reliability

- name conflicts are less likely

Question 4

Language Requirements for ADTs

Answer 4

• syntatic unit
• method of making subprogram headers visible but the definitions hidden
• primitive operations built into language

Question 5

Encapsulation

Answer 5

• grouping of subprograms that are related but can be separately compiled

Question 6

Naming Encapsulation

Answer 6

• used to create a new scope for names