Question

what is a wapper class?

Answer 1

it consists of all subclasses of a particular main class....i.e.
for class ' number' it contains
( integer,float,long,short...etc.)
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Answer 2

hii frnd,

Primitive data types are themselves wrapped up by Java classes. Such classes are called wrapper classes or type wrappers. It is helpful in creating objects of these classes which will be similar to the primitive types.

hope it helped u
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