Primitive vs reference types Java

In JavaScript, a primitive (primitive value, primitive data type) is data that is not an object and has no methods . There are 7 primitive data types: string, number, bigint, boolean, undefined, symbol, and null.

Primitives are passed by value, i.e. a copy of the primitive itself is passed. Whereas for objects, the copy of the reference is passed, not the object itself. Primitives are independent data types, i.e. there does not exist a hierarchy/super class for them. Whereas every Object is descendent of class “Object” .27 Ara 2011

The language defines eight Java primitive data types: boolean, float, double, byte, short, int, long and char. These eight Java primitive data types fall into the category of things that aren’t objects .30 Oca 2020