Creating an array of concrete instances of a generic class

Question

I have a generic class Position<E> and a concrete class Card . How do I create an array of type Position<Card> ?

I tried: Position<Card>[] suitPositions = (Position<Card>[]) new Object[5];
but I get a ClassCastException.

But when I try: Position<String>[] suitPositions = (Position<String>[]) new Object[5];
it works just fine.

Answer 1

使用原始类型创建数组：

Position<String>[] suitPositions = new Position[5];