Core Java Interview Questions :Describe the wrapper classes in Java.

Wrapper class is wrapper around a primitive data type. An instance of a wrapper class contains, or wraps, a primitive value of the corresponding type.:Wrapper class is wrapper around a primitive data type(i.e int,float,double,long).Some Examples Of wrapper classes are INTEGER,DOUBLE,LONG etc.:wraper class is a class. whose object are wrapped in to primitive data type. wraper class is basically use in convert into primitive data type to object