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Christian Thieme9,448 Points
Why is he adding the (Treet) before the code in this - ((Treet) someStuff).getDescription();
I don't understand why he is adding the (Treet) before the code in this - ((Treet) someStuff).getDescription();
I get all the code after the Treet, but don't understand why he added that at the beginning.
This is not the best treehouse video i've ever seen. This one could be revamped.
Seth Kroger56,412 Points
In this video, someStuff is an array of Objects. Because each item in the array is treated like an Object, and Objects don't have a getDescription method like Treet does, the item needs to be cast to a Treet to access it. It's equivalent to:
Treet aTreet = (Treet) someStuff; aTreet.getDescrption();
It's just compressed into one line, and the extra parentheses are there to make the order of operations correct (to cast the item from the array, not the result of getDescription()).