Is java object oriented. Plz Explain

Question

If Java is object oriented then how can we work with primitive data types. We should be able to work with only Object (Wrapper class)

Answer 1

Java is not fully object Oriented as it supports primitive data types.
Support to primitive data type is a feature more than big as creating object is costly affair in java.

Answer 2

Java is not pure object oriented lang bcoz it does not support some features of oops like operator overloading and multiple inheritance etc