Answer / jl

Wrapper classes are used to convert primitive types to objects.

Answer / vishnu

Wrapper class is a wrapper around a primitive data type. It
represents primitive data types in their corresponding class
instances e.g. a boolean data type can be represented as a
Boolean class instance. All of the primitive wrapper classes
in Java are immutable i.e. once assigned a value to a
wrapper class instance cannot be changed further.

Answer / sitaram

Wrapper classes are used to convert primitive types to
objects. wrapper classes are final classes. final classes
can't be extends to other class.

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