Wrapper Class in Java

Some times values we need to store in objects instead of primitives at that time wrapper classes are helpful to store.This will wrap the primitives into a objects and converting primitive into Object is call Boxing and Converting Object into corresponding primitive is called unboxing. From java 1.5 onwards auto boxing and unboxing came into picture.

int – Integer
byte – Byte
short – Short
long – Long
double – Double
boolean – Boolean
float – Float
char – Char

The above are the primitive types and their corresponding Wrapper classes. Number class is the parent for all this wrapper classes.

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