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Arnold Rosario
16,357 PointsSerialization: What does the Treet[] treets = new Treet[0] mean?
In the Serialization video, Craigs writes Treet[] treets = new Treet[0];
I don't understand why he wrote new Treet[0]? What does that mean? I am only familiar with creating arrays by saying Treet[] treets = {treet1, treet2, treet3};
Craig Dennis
Treehouse TeacherIf you ask a question from the video it will be properly categorized...adding an answer too.
1 Answer
Craig Dennis
Treehouse TeacherArray sizes are locked at creation. This is how you state how large the array should be so if I you write:
String[] words = String[3];
It will be a 3 element array of null values.
Make sense?
Arnold Rosario
16,357 PointsThanks again, you tha man!
Arnold Rosario
16,357 PointsActually, just to be sure.
So in the video's example: Treet[] treets = new Treet[0]; That means create a new Treet array with 1 element? Since arrays are 0-indexed?
Arnold Rosario
16,357 PointsAlso, wouldn't String[3] create a 4 element array of null values? Since you'll have words[0], words[1], words[2], words[3]?
Craig Dennis
Treehouse TeacherNope that's actually the size. The Treet array has 0 elements. I know...confusing :/
Arnold Rosario
16,357 PointsArnold Rosario
16,357 PointsAlso, how do I post questions into the correct category?