4) what is displayed:? class C1 public static void main(String[] args) System.out.println("hello"); System.out.println(3/2); System.out.println(3/2.0); System.out.println("2"+"3"+ "dog" ); System.out.println("dog" + "2" + "3"); if(13&& 5-6) System.out.println("bert"); else System.out.println("ernie"); System.out.println("x"+ 1 2); System.out.println(2*3*4/2*3)3 System.out.println("x -"5); System.out.println("2 + 3")