This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
The "default constructor" is the one automatically inserted by the compiler if you don't provide one yourself. So it's the first example. The second is a parameterless (or no-arg) constructor, but because you've provided it it isn't considered a default one.