Program Layout

Question 1

What layout depends on

Answer 1

white space

indentation

Question 2

white space

Answer 2

refers to visual space around words
made up of spaces, tabs, lines
in c++ it includes comments

Question 3

WS characters

Answer 3

SPACE characters - code no.32 in ASCII code

TAB characters - code no.9 in ASCII code

Question 4

line

Answer 4

string of zero or more characters terminated by End-Of-Line characters - Carriage Return (CR) and Line Feed (LF)

Question 5

comment types

Answer 5

End-of-line comments: introduced by //, runs to end of line

Multi-line comments: introduced by /* and terminated by */

Question 6

use of whitespace

Answer 6

• identify related pieces of code (surround em with WS)
• clarify an expression (separate pieces w/ WS)
• dont put more than one statement per line

Question 7

indentation

Answer 7

important for making C++ code more legible and understandable

Question 8

indentation rules

Answer 8

• indent using tab characters
• use chain brackets {} as indicators where to inc or dec indentation
• if statement has a subsidiary statement on next line, indent subsidiary statement by one tab
• if an if-then-else statement, give the if and else keywords same level of indentation