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the array problem

 
Greenhorn
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Which two create an instance of an array? (Choose Two)
A. int[] ia = new int [15];
B. float fa = new float [20];
C. char[] ca = �Some String�;
D. Object oa = new float[20];
E. Int ia [][] = (4, 5, 6) (1, 2, 3)

The answer is AD,
i doubt D, why should i choose D, what does "Object oa" mean? it means "oa" is the class name ?
Thanks!
 
Ranch Hand
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An array is an object, so you can assign a reference of type Object to an array.
 
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