Java 6 Illuminated: An Active Learning Approach, 2nd Edition



Begin variable names with

a lowercase letter.If the

variable name consists of

more than one word,begin

each word after the first

with a capital letter.Avoid

underscores in variable

names,and do not begin a

variable name with a dollar

sign.

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ENGINEERING TIP

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When selecting identifiers,

choose meaningful names

that reflect the use of the

identifier in the program;

this will make your code

self-documented.Use as

many characters as neces-

sary to make the identifier

clear,but avoid extremely

long identifiers.Also,for

clarity in your program

logic,avoid identifiers that

resemble Java keywords.

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ENGINEERING TIP

46 CHAPTER 2 Programming Building Blocks—Java ...