Re: d equivilent of java's public static class fields

[Jacob Carlborg]

On 2010-08-08 21:12, %u wrote:
I'm porting some code from Java to D and am getting stuck on what Java calls
static class fields.  I can't find out how to write the functional (or best
practices) equivalent in D.
(There are other syntax errors in D code, I'm fixing them one by one)

######### Begin D code (ported from Java code below, and I probably should use
an Enum, but .... haven't)
public class Answer
{
/* I've tried various combinations of syntax here */
   static int CORRECT = 0;
   public const int WRONG = 1;

   private int _answerCode;
   private string _answerText;

   /*
   */
   public this(int answerCode, string answerText)
   {
     _answerCode = answerCode;
     _answerText = answerText;
   }

   /*
   */
   public int getAnswerCode()
   {
     return _answerCode;
   }

   /*
   */
   public string getAnswerText()
   {
     return _answerText;
   }
}
####### End D code code

####### Begin Java code (included to show how it was done in java)
public class Answer
{
   public static final int CORRECT = 0;
   public static final int WRONG = 1;

   private int _answerCode;
   private String _answerText;

   /*
   */
   public Answer(int answerCode, String answerText)
   {
     _answerCode = answerCode;
     _answerText = answerText;
   }

   /*
   */
   public int getAnswerCode()
   {
     return _answerCode;
   }

   /*
   */
   public String getAnswerText()
   {
     return _answerText;
   }
}
###### End Java code

######### Begin D code snippet trying to use the Answer class
int asd = Answer.CORRECT;<-- compile error here

try
{
   answer = problem.getAnswer(reply); // grade answer

   if (answer.getAnswerCode() == Answer.CORRECT)<-- compile error here
     inOut.displayAnswer("Correct");
   else
     inOut.displayAnswer("Nope, " ~ answer.getAnswerText());
}
catch (Exception iae)
{
   inOut.displayAnswer(iae.getMessage());
   repeatQuestion = true; // show same question again
}
######### End D code snippet

I don't know how you are trying to use your class but I don't see any 
errors in your code.

--
/Jacob Carlborg