Define two packages. Package 1 contalns two classes (A, B) and so also package 2 (C, D). Class A has the main method. Class B has a private varlable x 2 and protected variable y, and one public method which returns the summation of x and y. Class D has one private variable (k) and protected method which is returned a ks. Class C has a public method to print the result of the calling method in Class D and pass a varlable to that method. Class A read the value of varlable y of class B. Class A passes the method of class B to a method print of class C.