Creating an array of concrete instances of a generic class

问题

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.

回答1:

Use the raw type to create the array:

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

来源：https://stackoverflow.com/questions/35821682/creating-an-array-of-concrete-instances-of-a-generic-class