Why exactly do subclass constructors have to explicitly call super class constructors?
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  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/1168345/why-does-this-and-super-have-to-be-the-first-statement-in-a-constructor">Why does this() and super() have to be the first statement in a constructor?</a>  </p>
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<p>Why exactly do subclass constructors have to explicitly call super class constructors? What is the reason for this?</p>
