Chapter 3

Question 1

Spaghetti code

Answer 1

snarled unstructured program logic.

Question 2

Unstructured programs

Answer 2

are programs that do not follow the rules of structured logic.

Question 3

Structured programs

Answer 3

are programs that do follow the rules of structured logic.A structure

Question 4

structure

Answer 4

is a basic unit of programming logic; each structure is a sequence, selection, or loop.

Question 5

sequence structure

Answer 5

contains series of steps executed in order. A sequence can contain any number of tasks, but there is no option to branch off, skipping any of the tasks.

Question 6

selection structure or decision structure

Answer 6

contains a conditional test, and, depending on the result, takes one of two courses of action before continuing with the next task.

Question 7

Boolean expression

Answer 7

is one that represents only one of two states, usually expressed as true or false.

Question 8

end-structure statement

Answer 8

designates the end of a pseudocode structure.

Question 9

if-then-else

Answer 9

is another name for a dual-alternative selection structure.

Question 10

Dual-alternative ifs (or dual-alternative selections)

Answer 10

define one action to be taken when the tested condition is true and another action to be taken when it is false.

Question 11

Single-alternative ifs (or single-alternative selections

Answer 11

take action on just one branch of the decision.

Question 12

null case or null branch

Answer 12

is the branch of a decision in which no action is taken

Question 13

null case or null branch

Answer 13

is the branch of a decision in which no action is taken

Question 14

loop structure

Answer 14

continues to repeat actions while a test condition remains true.

Question 15

loop body

Answer 15

is the set of actions that occur within a loop.

Question 16

while loop

Answer 16

is a structure that continues to repeat a process while some condition remains true.

Question 17

Repetition and iteration

Answer 17

are alternate names for a loop structure.

Question 18

while…do loop

Answer 18

is an alternate name for a while loop.

Question 19

Stacking structures

Answer 19

is the act of attaching structures end to end.

Question 20

Nesting structures

Answer 20

is the act of placing a structure within another structure.

Question 21

block

Answer 21

is a group of statements that executes as a single unit.

Question 22

priming input or priming read

Answer 22

is the statement that reads the first input prior to starting a structured loop that uses the data.

Question 23

Goto-less programming

Answer 23

is a name to describe structured programming, because structured programmers do not use a “go to” statement.