Difference between null==object and object==null

Question

Hi I would like to know diff between the above comparisons?

I am getting null pointer exception when I check object.getItems() == null. But if I change it to null == object.getItems(), it workes fine.

I did look into this http://stackoverflow.com/questions/2938476/what-is-the-difference-between-null-object-and-objectnull-closed But I didnt get satisfactory answer.

Answer 1

No, those two expressions are equivalent. Perhaps you're mixing it up with the fact that

nonNullObj.equals(obj)

and

obj.equals(nonNullObj)

can make a difference (since the second alternative could result in a NPE).

Answer 2

in

object.getItems() == null

I believe that the code will get the items value, then check if it equals null

in

null == object.getItems()

First the app will detect the null value, then get the items to compare it to.