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.
Whenever you create an array, depending on the data type of array (int, String, double etc.) the elements are initialized to some particular value. For int this value is 0. For String it is null, so if you have this: