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Java array comparison table

Subject	avoid	have length	have example	manipulate	compose of	be	contain	declare by	is a kind of
Java data type									data type
Java array	if you do not a-priori know the number of items it will contain		//the following sums all the elements of an integer array: for(int i=0; i{ sum += anIntArray[i]; }	collections of objects	primitive types and instances of classes	an instance of a class which you can subclass or for which you can write your own code	a fixed number of elements	array declaration	Java data type

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