public class Test $\{$

public static void main$($String$[]$ args$)\{$

int$[]x=$ new int $[3]$;

System.out.println$("$x$[0]$ is $"+$ x$[0])$;

$\}$

$\}$

The program has a compile error because the size of the array wasn't specified when declaring the array.

The program runs fine and displays x$[0]$ is $0.$

The program has a runtime error because the array elements are not initialized.

The program has a runtime error because the array element x$[0]$ is not defined.