Difference between revisions of "Coding guidelines"

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== General Conventions ==
 
== General Conventions ==
#Comment your code ([[documentation_guidelines]])
+
#Comment your code ([[Documentation guidelines]])
 
#One File - One Class
 
#One File - One Class
 
#Don't add packages with a wildcard (e.g. java.lang.* - instead always type the whole package name java.lang.Integer)
 
#Don't add packages with a wildcard (e.g. java.lang.* - instead always type the whole package name java.lang.Integer)
 
# Produce readable code
 
# Produce readable code
 
# Produce efficient code (in this order - first readability, then efficiency)
 
# Produce efficient code (in this order - first readability, then efficiency)
 +
 +
To ease development while following the rules a checkstyle file can be used. [[Checkstyle_Eclipse|Download and configuration with Eclipse]]
  
 
== Naming Conventions ==
 
== Naming Conventions ==
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example hungarian:  mnCountOfHeimos (m for member, n typeof integer)
 
example hungarian:  mnCountOfHeimos (m for member, n typeof integer)
  
Origin: [http://en.wikipedia.org/wiki/Hungarian_notation|Hungarian notation - Wikipedia]
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Origin: [http://en.wikipedia.org/wiki/Hungarian_notation Hungarian notation - Wikipedia]
  
  
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  g ... generic
 
  g ... generic
 
   ... to be continued
 
   ... to be continued
 
  
 
== File notation (java/eclipse) ==
 
== File notation (java/eclipse) ==

Latest revision as of 15:58, 17 February 2013

General Conventions

  1. Comment your code (Documentation guidelines)
  2. One File - One Class
  3. Don't add packages with a wildcard (e.g. java.lang.* - instead always type the whole package name java.lang.Integer)
  4. Produce readable code
  5. Produce efficient code (in this order - first readability, then efficiency)

To ease development while following the rules a checkstyle file can be used. Download and configuration with Eclipse

Naming Conventions

camel case + (reduced) hungarian notation = ARS coding guidline

example camel case: clsHeimoZeilinger (new word –> capital letter)

example hungarian: mnCountOfHeimos (m for member, n typeof integer)

Origin: Hungarian notation - Wikipedia


Basics in (reduced) hungarian notation:

1st letter:

     m ... member
     p ... method parameter
     i ... interface parameter
     s ... static variable
 blank ... function scope
       ... to be continued


2nd letter:

b ... boolean
e ... enum
n ... number (integer, long)
r ... real (floating point, double)
o ... object (also string)
g ... generic
 ... to be continued

File notation (java/eclipse)

clsXYZ           ... Classe Files
XYZ              ... Class Files that contain the method //public static main(String args[])// and that are meant to be used to start the application
itfXYZ           ... Java Interface
tstXYZ           ... junit Test Cases
tssXYZ           ... junit Test Suites