Which of the following is not a java primitive type? code example

Example 1: primitive and non primitive data types in java

Primitive data types are those data types which are used by programmers when creating variables in their program. 
For example :-
    * boolean
    * char
    * byte
    * short
    * int
    * long
    * float
    * double
Non-Primitive data types:
    * String
    * array
    * enum
    * class
    * etc

Example 2: what are the primitive types java

Primitive types are the most basic data
types available within the Java language. 
Some of them are boolean , byte , char ,
short , int , long , float and double . 
These types serve as the building blocks
of data manipulation in Java.