More specifically:

Still more (scandalously basic) trivia! Also, there's no reason you can't have a private constructor if you really, really want one. Don't let kill-joys tell you there is. Here, have a look at this:
// For your pleasure alone, I have used hardlinks in lieu
// of syntax highlighting. Enjoy.

public class LookyHere extends FancySecretSuperClass {

   private LookyHere (String str) {
      super(str);    //this string does something important
   public LookyHere (Integer i) {
   public LookyHere (Object o) {
   public LookyHere (char[] chrs) {
      this(new String(chrs));
   // etc.

It makes sense in the same way using accessors to fiddle with your member variables does. Granted, it's kind of a trivial example. (I had intended to pass in the different possible parameters for a Connection object, but I'm lousy at that database stuff and it would never have compiled. Hell, even this may not compile. It's just an illustration of my argument.)

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