What is boxing and Unboxing in JAVA

Well - to understand boxing concept in JAVA, you must know the classes and objects concept.

In java everything is object.

For example -

int a=10;

here a is a variable of primitive data type but you can convert this a into object of Integer Type.

Integer a=10;

here a is a object of class Integer.

So conversion of int to Integer is called boxing and reverse way is unboxing