What is the output of this program?

 

    interface calculate {

        void cal(int item);

    }

    class displayA implements calculate {

       public int x;

        public void cal(int item) {

            x = item * item;          

        }

    }

    class displayB implements calculate {

        public int x;

        public void cal(int item) {

            x = item / item;          

        }

    }

    class interfaces {

        public static void main(String args[]) {

           calculate arr1 = new displayA();

           calculate arr2 = new displayB();

            arr1.x = 0;

            arr2.x = 0;    

            arr1.cal(4);

            arr2.cal(4);

            System.out.print(arr1.x + " " + arr2.x);

        }

    }

What is the output of this program?

    interface calculate {

        void cal(int item);

    }

    class displayA implements calculate {

        int x;

        public void cal(int item) {

            x = item * item;            

        }

    }

    class displayB implements calculate {

        int x;

        public void cal(int item) {

            x = item / item;            

        }

    }

    class interfaces {

        public static void main(String args[]) {

            displayA arr1 = new displayA;

            displayB arr2 = new displayB;

            arr1.x = 0;

            arr2.x = 0;      

            arr1.cal(2);

            arr2.cal(2);

            System.out.print(arr1.x + " " + arr2.x);

        }

    }