What is output by line 1? public class Whale { private int x, y; public static int c; public Whale() { c++; } public void fun() { x = 6; } public int back() { return 1; } public String toString() { return x + " " + y + " " + c; } } public class Beluga extends Whale { public void fun() { System.out.print(back()); } public int back() { return 2; } public String toString() { return "class Beluga " + super.toString(); } } //code in the main of another class Whale flipper = new Beluga(); flipper = new Whale(); flipper = new Beluga(); flipper = new Whale(); flipper.fun(); flipper = new Beluga(); flipper.fun(); System.out.println(flipper); //line 1