check for naming convention in java

Question

through java reflection how to check that method name is in camelCase? e.g.

import java.lang.reflect.*;

   public class TestClass {
      private int simpleMethod(
       Object p, int x) throws NullPointerException
      {
         if (p == null)
            throw new NullPointerException();
         return x;
      }

      public static void main(String args[])
      {
         try {
           Class cls = Class.forName("method1");

            Method methlist[] 
              = cls.getDeclaredMethods();
            for (int i = 0; i < methlist.length;
               i++) {  
               Method m = methlist[i];
               System.out.println("name= " + m.getName());

            }
         }
         catch (Throwable e) {
            System.err.println(e);
         }
      }
   }

here i am getting method names simpleMethod and main i have to check that these names are in camelCase.

camelCase. Love the expression. – James P. Apr 14 '10 at 00:32 — James P., Apr 14 '10 at 00:32

score 5 · Accepted Answer · edited May 23 '17 at 12:02

5

This problem is ill-defined. It's easy to check if a string of letters starts with a lowercase ([a-z][a-zA-z]*), or to chop them up where uppercases are (see e.g. How do I convert CamelCase into human-readable names in Java?) and verify that they are words from some given dictionary, and things like that, but unless you're told where to look for uppercases, it's almost impossible to check if a string is a semantically proper camel case or not.

Is bitterAFlop a proper camel case? Maybe it should've been bitTeraflop?
What about getLinenUmber? (Yes! "umber" is a word!)
What about words from other languages?

edited May 23 '17 at 12:02

Community

1
1

answered Apr 14 '10 at 02:00

polygenelubricants

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What I've done to solve this is use SimpleNLG to detect words from a string, and then check if they starts with uppercase letter. https://github.com/simplenlg/simplenlg Please check this gist to see the source: https://gist.github.com/sergiofigueras/591c570623bb2ba142dacd9f0c1d2523 – Sergio Figueras May 31 '16 at 09:16

score 1 · Answer 2 · edited May 23 '17 at 10:32

1

Use a regex to check if it matches camelCase. Related answers: What Perl regex can match CamelCase words?

edited May 23 '17 at 10:32

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answered Apr 13 '10 at 19:59

Jason Hall

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no that will not help me. what about these names main, getURL,etc. – Vivart Apr 13 '10 at 20:11
How about this? [a-z]+[a-zA-Z0-9]* – Jason Hall Apr 13 '10 at 20:16
but if somebody has written simplemethod, i have to return that its not in camelCase. – Vivart Apr 13 '10 at 20:34
1

Grab a dictionary. It's however going to be a lot of work. Good luck :) – BalusC Apr 13 '10 at 20:40
In that case, you'll also have to split on the camel-case words (http://stackoverflow.com/questions/773303/splitting-camelcase) and check that those words are in a dictionary. – Jason Hall Apr 13 '10 at 20:49

check for naming convention in java

2 Answers2