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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 what is the difference between null != object and object!=null But I didnt get satisfactory answer.
(Similar question: Which is more effective: if (null == variable) or if (variable == null)?)
There is no semantical difference.
object.getItems() == null
andnull == object.getItems()
are equivalent.Perhaps you're mixing it up with the fact that
and
can make a difference (since the second alternative could result in a NPE in case the callee is null).