Week 8 note (Abstract Data Types)

Question 1

Encapsulation

Answer 1

is a grouping of subprograms and the data that they manipulate

Question 2

Two kinds of abstractions in programming languages are

Answer 2

process abstraction and data abstraction.

Question 3

process abstraction

Answer 3

All subprograms are process abstractions because they provide a way for a program to specify that some process is to be done, without providing the details of how it is to be done.

All subprograms, including concurrent subprograms, and exception handlers, are process abstractions

Question 4

An abstract data type is

Answer 4

adalah sebuah enkapsulasi yang didalamnya terdapat representasi data dari satu tipe data dan subprogram yang menyediakan operasi pada tipe data tersebut.

Question 5

An instance of an abstract data type is called

Answer 5

object

Question 6

An abstract data type is a data type that satisfies two conditions

Answer 6

1. The representation, or definition, of the type and the operations are contained in a single syntactic unit
2. The representation of objects of the type is hidden from the program units that use the type, so only direct operations possible on those objects are those provided in the type’s definition

Question 7

Program units that use a specific abstract data type are called

Answer 7

clients

Question 8

Benefit of information hiding is

Answer 8

increased reliability, because clients cannot change the underlying representations of objects directly.

Question 9

data members is?

Answer 9

the data defined in a class

Question 10

member functions is?

Answer 10

the functions defined in a class

Question 11

What is Inheritance?

Answer 11

adalah suatu teknik untuk mendefinisikan sebuah kelas baru yang dapat memiliki properti dari kelas lain, sehingga dapat memudahkan untuk membuat dan mengatur sebuah aplikasi.