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Why Java is not Pure Object Oriented Programming Language ?

In short, Java is not a pure object-oriented programming language .because it supports primitive data types.

In a pure object-oriented language everything is an object and there are many things in Java that are not objects 

for Example: primitive data types like char, short, int, long, float, double, 

and different type of arithmetic, logical and bitwise operator like  -,+,  /, &&, ||,* etc.

Java has been never considered 100% or pure object-oriented programming language.


There are seven qualities of Pure Object Oriented Programming Language : 


1. Encapsulation/Data Hiding


2. Inheritance


3. Polymorphism


4. Abstraction


5. All predefined types are objects


6. All operations are performed by sending messages to objects


7. All user-defined types are objects.


Java don't have all these 7 qualities that's why its not Pure Object Oriented Programming Language.

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