Could Constructor return null?

Question

Hi everybody,
Could we let a constructor return null?
I think this is an easy way to let caller know we
can't create such an object.
Thanks in advance.

Answer 1

as cited before, you should prefer the exception handling .. but, just for your curiousity:
public class NullDemo
     static public void main(String[] args)
          System.out.println(Example.createAnExample(new String[]{"all ", "right"}));
          System.out.println(Example.createAnExample(null));
class Example
     final String text;
     private Example(String[] args)
          String temp = "";
          for(int i=0; i<args.length; i++)
               temp += args;
          text = temp;
          //i = i/0;
     static public Example createAnExample(String[] args)
          try
               Example e = new Example(args);
               return e;
          catch(Exception error)
               return null;
     public String toString()
          return text;