Which is the output of the following Java code?

interface calculate

{

void cal(int item);

}

class calculator1 implements calculate

{

int x;

public void cal(int item)

{

x = item * item;

}

}

class calculator2 implements calculate

{

int x;

public void cal(int item)

{

x = item / item;

}

}

class interfaces

{

public static void main(String args[])

{

calculator1 c1 = new calculator1();

calculator2 c2 = new calculator2();

c1.x = 0;

c2.x = 0;

c1.cal(2);

c2.cal(2);

System.out.print(c1.x + " " + c2.x);

}

}