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Where and how is the term used wrapper used in programming, and what . . . Object Wrapper (Java) In Java, there is a class provided in the java lang package to provide object methods for the eight primitive types All of the primitive wrapper classes in Java are immutable So Wrapper classes are used to represent primitive values when an Object is required
design patterns - What is a wrapper class? - Stack Overflow A wrapper class (as adapter) is used when the wrapper must respect a particular interface and must support a polymorphic behavior On the other hand, a facade is used when one wants an easier or simpler interface to work with
What is the meaning of a C++ Wrapper Class? - Stack Overflow A "wrapper class" is a colloquial term meaning a class that "wraps around" a resource; i e, that manages the resource When people write a wrapper, then, they are doing something like this:
How to correctly use std::reference_wrappers - Stack Overflow std::reference_wrapper has some very specific uses for library-authors, being relevant to perfect forwarding and storing arguments (see e g std::bind and std::thread) I don't recommend using it outside of those situations
java - Why we need wrapper class - Stack Overflow I understand what is a wrapper class, they primitive types (eg: int, double, etc) to objects of their respective class (eg: Integer, Double, etc) But, why we need Wrapper classes, why we chose objects of their respective class