Java Wrapper Classes Examples | 2022 | Java Part -73

Publicado em: 19 Fevereiro 2022
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Wrapper classes in Java
What is Wrapper Classes ? (Up casting & Down casting) Watch:- Part 29
The wrapper class in Java is object version of primitive data type.
In java with collection framework and some author place we can’t use primitive data type there we can use only Object Type, that’s why we need wrapper classes.
All Wrapper Classes Present inside “java.lang” package.
All Wrapper Classes declared as final classes.
Autoboxing:-
Automatic conversion of primitive types to the object type.

Unboxing :-
It is just the reverse process of auto-boxing.
Automatic conversion an object type to primitive types.

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