programming-for-dummies

Organizing a Program 131
So if your program isn’t printing correctly, you don’t have to search through
your entire program to find the faulty commands. Instead, you can just look
at the part of your program where you grouped all your printing commands,
as shown in Figure 1-3.
Printing commands
Math commands
Math commands
Math commands
Saving commands
Math commands
Saving commands
Saving commands
Book II
Chapter 1
Figure 1-3:
Dividing a
large
program
into parts
can make it
easy to find
specific
commands
in your
program.
Printing commands
Saving commands
Printing commands
Storing commands with no
organization makes the
program harder to read
and understand.
Printing commands
Printing commands
Printing commands
By just organizing related
commands together, you
can make a program easier
to read and understand.
How Programs
Work
When you write a simple program that consists of a handful of commands,
organizing related commands in groups isn’t too important, but when you
start writing bigger programs that consist of hundreds or thousands of commands,
organizing commands can mean the difference between writing a
program that nobody can understand or a program that’s easy for anyone to
understand and modify.
When you save your program, you save it as a single file on the computer.
However, the more commands you write, the bigger your program gets, and
the bigger the file you need to store the whole program.
No matter how carefully you organize your commands, eventually your program
will get too big and cumbersome as a single massive file to read and
modify easily. That’s when you need to break your program into smaller
parts.