Primitive wrapper class in Java: Difference between revisions

Revision as of 03:09, 18 March 2021

Revision as of 08:36, 20 April 2022

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Primitive wrapper classes are not the same thing as primitive types. Whereas variables, for example, can be declared in Java as data types '''double''', '''short''', '''int''', etc., the primitive wrapper classes create instantiated objects and methods that inherit but hide the primitive data types, not like variables that are assigned the data type values.<ref name=murach/>

Therefore, the term ''Primitive wrapper class'' does not mean that [https://www.scaler.com/topics/java/wrapper-classes-in-java/ wrapper classes] are primitive types. It should be understood to be a class that wraps primitive types. Wrapper classes can be used to store the same value as of a primitive type variable but the instances/objects of wrapper classes themselves are ''Non-Primitive''. We cannot say that Wrapper classes themselves are Primitive types. They just wrap the primitive types.

The <code>Byte</code>, <code>Short</code>, <code>Integer</code>, <code>Long</code>, <code>Float</code>, and <code>Double</code> wrapper classes are all [[subclass (computer science)|subclass]]es of the {{Javadoc:SE|java/lang|Number}} class.