This section explains many ways to improve individual statements in a program.
A common and somewhat outdated rule is to limit statement line length to 80 characters. Here are the reasons:
Lines longer than 80 characters are hard to read.
The 80-character limitation discourages deep nesting.
Lines longer than 80 characters often won't fit on 8.5″ x 11″ paper, especially when code is printed "2 up" (2 pages of code to each physical printout page).
With larger screens, narrow typefaces, and landscape mode, the 80-character limit appears increasingly arbitrary. A single 90-character-long ...