Slr 23

Question 1

Sequence

Answer 1

Executing instructions one after another

Question 2

Selection

Answer 2

A construct that allows a program to change direction depending on the outcome of a condition

Question 3

Selection example

Answer 3

If statement

Question 4

Iteration

Answer 4

Allows user to repeat sections of code

Question 5

Iteration example

Answer 5

For loop (count controlled- number of iterations known before)
While loop (condition controlled- number of iterations not known because the variable used to determine when it ends is changing within the iteration itself)

Question 6

Nest programming constructs

Answer 6

Iteration or selection (or both)

Question 7

Local variable accessibility

Answer 7

Single subroutine only

Question 8

Local variable created

Answer 8

Declared inside a subroutine

Question 9

Local variable destroyed

Answer 9

When the subroutine exits

Question 10

Global variable accessibility

Answer 10

Entire program

Question 11

Global variable created

Answer 11

Declared outside a subroutine. Typically at the start of a program.

Question 12

Global variable destroyed

Answer 12

When the program ends

Question 13

Modularity

Answer 13

Concept of breaking down a large program or problem into smaller chunks

Question 14

Modularity goal

Answer 14

To design a program in a way that each module carries out a single, specific task

Question 15

Modules known as

Answer 15

Subroutines, procedures, functions, methods

Question 16

Procedure

Answer 16

Block of code that takes in zero, one or more parameters and performs a set task

Question 17

Function

Answer 17

Block of code that takes in zero, one or more parameters; performs a set task; and returns a value

Question 18

Return value

Answer 18

Does not need to be assigned to a variable as long as it returns something valid

Question 19

First line means

Answer 19

The first line of a subroutine specifies the interface for that subroutine

Question 20

The interface outlines

Answer 20

The name of the subroutine
The list of parameters it requires when it is called
The data type for those parameters
The order of those parameters
- if the subroutine interface is for a function, it also typically includes the data type of its return value

Question 21

Two methods to pass data into subroutine

Answer 21

Passing by value
Passing by reference

Question 22

IDE definition

Answer 22

An IDE is a program that provides a set of tools and related functionality designed to maximise a programmers productivity (e.g. IDLE)

Question 23

IDE common features

Answer 23

Code editors
Error diagnostics
Run time environments
Translators
Auto documentation
Syntax highlighting
Autocompletion

Question 24

Define code editors

Answer 24

A text area for programmers to enter code directly into the IDE, often supports additional features like syntax highlighting, autocomplete and automatic indentation

Question 25

Define error diagnostics

Answer 25

Reports errors (mainly syntax) in the code and where they can be found; often suggests possible fixws

Question 26

Define run time environments

Answer 26

Software that supports the execution and running of programs Allows programmers to easily run code during development

Question 27

Define translators

Answer 27

A program that converts high level code into executable machine code

Question 28

Define auto documentation

Answer 28

Tracks variable declared by the programmer, modules and other special programmer comments with a view to producing documentation that aids in program maintenance, debugging and support