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Newsgroups: comp.lang.java.programmer
Date: Tue, 29 Jan 2013 13:14:16 -0800 (PST)
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Subject: Re: Reading Code Standard
From: Lew <lewbloch@gmail.com>
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Xref: csiph.com comp.lang.java.programmer:21842

Martin Gregorie wrote:
> subhabangalore wrote:
>> The suggestions and the solutions given by the learned members of the
>> group are very nice. Thank you for your kind time.
> 
>> Now as a new learner of the language, I am trying to consolidate my
>> learning.
> 
>> I want to read about good coding standards, and read some good codes in
>> its various aspects.
> 
> I think "The Practice of Programming" by Brian Kernighan and Rob Pike is 
> well worth having. It describes good approached to naming, program layout 
> and writing programs so they are easier to debug and maintain. There's 
> not a lot about Java in it (its main focus is on C) but what it says is 
> generally applicable to block structured languages: it gives examples in 
> C, C++, Java, and Perl but its suggestions would be equally applicable to 
> Python and Pascal.

As mentioned upthread, there are standards specific to Java.

They boil down to:
- Use camel case for identifiers except constant variables.
- Start variable and method names (except constant variables) with a lower-case letter.
- Start type names with an upper-case letter.
- Constant variables are spelled with all upper case, with word parts separated by underscores.
- Do not use underscores for any other identifiers, and do not use the dollar sign "$" in identifiers.
- Indent four spaces (or two) per indent level. DO NOT USE TAB CHARACTERS TO INDENT.
- Enclose all sub-statements (conditional blocks, loop blocks, initializers, ...) in braces.
- Use either K&R brace placement or put the opening brace on its own line aligned with the 
   control line. (The second approach is unofficial but widely used.)
- Declare static variables (constants first), then static methods, then instance variables, then 
   instance methods within a type. (Reasonable deviations exist.)
- Use fully descriptive variable names. (Avoid shorthand like 'int s = ...'.)
- Javadoc all elements accessible outside the type.
- Names should reflect algorithmic purpose, not data type.

There's more, but that'll get you started.

-- 
Lew