AP CSA exam full vocab review

Question 1

softwhere fevelopement

Answer 1

writing a program

Question 2

object oriented programming (oop)

Answer 2

uses interacting objects

Question 3

program specification

Answer 3

description of a task

Question 4

program design

Answer 4

a written plan, an overview of the solution

Question 5

program implementation

Answer 5

the code

Question 6

test data

Answer 6

input to test the programb

Question 7

program maintenance

Answer 7

keeping the program working and up to date

Question 8

top-down development

Answer 8

implement main classes first. sub classes later

Question 9

independent class

Answer 9

doesn’t use other classes of the program in its code

Question 10

bottom up development

Answer 10

implements lowest level, independent classes first

Question 11

driver class

Answer 11

used to test other classes; contains main method

Question 12

inheritance relationship

Answer 12

is-a relationship between classes

Question 13

composition relationship

Answer 13

has-a relationship between classes

Question 14

inheritance hierarchy

Answer 14

inheritance relationship shown in tree-like diagram

Question 15

UML diagram

Answer 15

tree-like representation of relationship between classes

Question 16

data structure

Answer 16

java construct for storing a data field (eg array)

Question 17

dara encapsulation

Answer 17

hiding data fields and methods in a class

Question 18

stepwise refinement

Answer 18

breaking methods into smaller methods

Question 19

procedural abstraction

Answer 19

using separate methods to encapsulate each task

Question 20

algorithm

Answer 20

step-by-step process that solves a problem

Question 21

stub method

Answer 21

dummy method called by another method being tested

Question 22

debugging

Answer 22

fixing errors

Question 23

robust program

Answer 23

screens out bad input

Question 24

compile-time error

Answer 24

usually a syntax error; prevents program from compiling

Question 25

syntax error

Answer 25

bad language usage (eg missing { )

Question 26

run time error

Answer 26

occurs during execution (after code is complied) (eg int division by zero, index out of bounds)

Question 27

exception

Answer 27

run time error thrown by java method

Question 28

logic error

Answer 28

program runs and complies but does not do what you want it to

Question 29

assertion

Answer 29

a precise statement about a program given at any point.

Question 30

pre condition

Answer 30

a statement of what is true immediately before execution of that code

Question 31

post condition

Answer 31

a statement of what is true immediately after execution of that code

Question 32

CPU time

Answer 32

the number of machine operations required to carry out the algorithm (arithimic operations, comparisons, data movement, etc)

Question 33

memory

Answer 33

the number and complexity of the variables used

Question 34

matrix

Answer 34

a 2-D array

Question 35

when should you use row-column traversal

Answer 35

for accesing elements, modifying elements that are class objects, or replacing elements

Question 36

when should you use enhanced for loop traversal for a 2d array

Answer 36

for accessing elements or modifying elements that are clsss objects but, no replacements