Q) What is autoboxing?

A)

->implicit conversion of a primitive type into object (wrapper) type is known as autoboxing.

Ex:

class autoboxing

{

       static void x(Integer i)

       {

              System.out.println(i);

       }

       public static void main(String[] args)

       {

              Integer i= new Integer(10);

              x(i);

              x(10);//autoboxing - it is done with jdk1.5 anf 1.6. but ir is not       in jdk 1.4

             

       }

}

Output:
10

10

->autoboxing and auto unboxing is not work in jdk1.4, these are work from jdk1.5 on works.