Resizing an Array

Question

If this were a regular array, I could just create a new array and then do arraycopy, but generics won\'t let me do that. The best thing I\'ve come up with so far is:

Answer 1

Two things:

1. If you're getting a null pointer on the first line of resize() it's probably because you have no value in myArray[0]. If that is null, your getClass() will bomb.

2. You don't appear to be assigning myArray = tempArray so you'll probably run into an ArrayIndexOutOfBounds soon.

Answer 2

you can use Arrays.copyOf(myArray,myArray.length*3) to make the copy

my guess is that myArray[0] is null so myArray[0].getClass() throws the nullpointer

if you need the runtime type of the components you can use myArray.getClass().getComponentType()